Monetarism v. Hawtrey and Cassel

The following is an updated and revised version of the penultimate section of my paper with Ron Batchelder “Pre-Keynesian Theories of the Great Depressison: What Ever Happened to Hawtrey and Cassel?” which I am now preparing for publication. The previous version is available on SSRN.

In the 1950s and early 1960s, empirical studies of the effects of money and monetary policy by Milton Friedman, his students and followers, rehabilitated the idea that monetary policy had significant macroeconomic effects. Most importantly, in research with Anna Schwartz Friedman advanced the seemingly remarkable claim that the chief cause of the Great Depression had been a series of policy mistakes by the Federal Reserve. Although Hawtrey and Cassel, had also implicated the Federal Reserve in their explanation of the Great Depression, they were unmentioned by Friedman and Schwartz or by other Monetarists.[1]

The chief difference between the Monetarist and the Hawtrey-Cassel explanations of the Great Depression is that Monetarists posited a monetary shock (bank failures) specific to the U.S. as the primary, if not sole, cause of the Depression, while Hawtrey and Cassel considered the Depression a global phenomenon reflecting a rapidly increasing international demand for gold, bank failures being merely an incidental and aggravating symptom, specific to the U.S., of a more general monetary disorder.

Arguing that the Great Depression originated in the United States following a typical business-cycle downturn, Friedman and Schwartz (1963) attributed the depth of the downturn not to the unexplained initial shock, but to the contraction of the U.S. money stock caused by the bank failures. Dismissing any causal role for the gold standard in the Depression, Friedman and Schwartz (359-60) acknowledged only its role in propagating, via PSFM, an exogenous, policy-driven, contraction of the U.S. money stock to other gold-standard countries. According to Friedman and Schwartz, the monetary contraction was the cause, and deflation the effect.

But the causation posited by Friedman and Schwartz is the exact opposite of the true causation. Under the gold standard, deflation (i.e., gold appreciation) was the cause and the decline in the quantity of money the effect. Deflation in an international gold standard is not a local phenomenon originating in any single country; it occurs simultaneously in all gold standard countries.

To be sure the banking collapse in the U.S. exacerbated the catastrophe. But the collapse was the localized effect of a more general cause: deflation. Without deflation, neither the unexplained 1929 downturn nor the subsequent banking collapse would have occurred. Nor was an investment boom in the most advanced and most productive economy in the world unsustainable as posited, with no evidence of unsustainability other than the subsequent economic collapse, by the Austrian malinvestment hypothesis.

Friedman and Schwartz based their assertion that the monetary disturbance that caused the Great Depression occurred in the U.S. on the observation that, from 1929 to 1931, gold flowed into, not out of, the U.S. Had the disturbance occurred elsewhere, they argued, gold would have flowed out of, not into, the U. S.

Table 1 shows the half-year changes in U.S., French, and world gold reserves starting in June 1928, when the French monetary law re-establishing the gold standard was enacted.

TABLE 1: Gold Reserves in US, France, and the World June 1928-December 1931 (measured in dollars)
Date World ReservesUS ReservesUS Share (percent)French ReservesFrench Share (percent)
June 19289,7493,73238.31,13611.7
Dec. 192810,0573,74637.21,25412.4
2nd half 1928 change31214-1.11180.7
June 192910,1263,95639.11,43614.2
1st half 1929 change692101.91821.8
Dec. 192910,3363,90037.71,63315.8
2nd half 1929 change210-56-1.41971.6
June 193010,6714,17839.21,72716.2
1st half 1930 change3352781.5940.4
Dec. 193010,9444,22538.72,10019.2
2nd half 1930 change 27347-0.53733.0
June 193111,264459340.82,21219.6
1st half 1931 change3203682.11120.4
Dec. 193111,3234,05135.82,69923.8
2nd half 1931 change59-542-5.04874.2
June 1928-Dec. 1931 change1,574319-2.51,56312.1
Source: H. C. Johnson, Gold, France and the Great Depression

In the three-and-a-half years from June 1928 (when gold convertibility of the franc was restored) to December 1931, gold inflows into France exceeded gold inflows into the United States. The total gold inflow into France during the June 1928 to December 1931 period was $1.563 billion compared to only $319 billion into the United States.

However, much of the difference in the totals stems from the gold outflow from the U.S. into France in the second half of 1931, reflecting fears of a possible U.S. devaluation or suspension of convertibility after Great Britain and other countries suspended the gold standard in September 1931 (Hamilton 2012). From June 1928 through June 1931, the total gold inflow into the U.S. was $861 billion and the total gold inflow into France was $1.076 billion, the U.S. share of total reserves increasing from 38.3 percent to 40.6 percent, while the total French share increased from 11.7 percent to 19.6 percent.[2]

In the first half of 1931, when the first two waves of U.S. bank failures occurred, the increase in U.S. gold reserves exceeded the increase in world gold reserves. The shift by the public from holding bank deposits to holding currency increased reserve requirements, an increase reflected in the gold reserves held by the U.S. The increased U.S. demand for gold likely exacerbated the deflationary pressures affecting all gold-standard countries, perhaps contributing to the failure of the Credit-Anstalt in May 1931 that intensified the European crisis that forced Britain off the gold standard in September.

The combined increase in U.S. and French gold reserves was $1.937 billion compared to an increase of only $1.515 billion in total world reserves, indicating that the U.S. and France were drawing reserves either from other central banks or from privately held gold stocks. Clearly, both the U.S. and France were exerting powerful deflationary pressure on the world economy, before and during the downward spiral of the Great Depression.[3]

Deflationary forces were operating directly on prices before the quantity of money adjusted to the decline in prices. In some countries the adjustment of the quantity of money was relatively smooth; in the U.S. it was exceptionally difficult, but, not even in the U.S., was it the source of the disturbance. Hawtrey and Cassel understood that; Friedman did not.

In explaining the sources of his interest in monetary theory and the role of monetary policy, Friedman (1970) pointedly distinguished between the monetary tradition from which his work emerged and the dominant tradition in London circa 1930, citing Robbins’s (1934) Austrian-deflationist book on the Great Depression, while ignoring Hawtrey and Cassel. Friedman linked his work to the Chicago oral tradition, citing a lecture by Jacob Viner (1933) as foreshadowing his own explanation of the Great Depression, attributing the loss of interest in monetary theory and policy by the wider profession to the deflationism of LSE monetary economists. Friedman went on to suggest that the anti-deflationism of the Chicago monetary tradition immunized it against the broader reaction against monetary theory and policy, that the Austro-London pro-deflation bias provoked against monetary theory and policy.

Though perhaps superficially plausible, Friedman’s argument ignores, as he did throughout a half-century of scholarship and research, the contributions of Hawtrey and Cassel and especially their explanation of the Great Depression. Unfortunately, Friedman’s outsized influence on economists trained after the Keynesian Revolution distracted their attention from contributions outside the crude Keynesian-Monetarist dichotomy that shaped his approach to monetary economics.

Eclectics like Hawtrey and Cassel were neither natural sources of authority, nor obvious ideological foils for Friedman to focus upon. Already forgotten, providing neither convenient targets, nor ideological support, Hawtrey and Cassel, could be easily and conveniently ignored.


[1] Meltzer (2001) did mention Hawtrey, but the reference was perfunctory and did not address the substance of his and Cassel’s explanation of the Great Depression.

[2] By far the largest six-month increase in U.S. gold reserves was in the June-December 1931 period coinciding with the two waves of bank failures at the end of 1930 and in March 1931 causing a substantial shift from deposits to currency which required an increase in gold reserves owing to the higher ratio of required gold reserves against currency than against bank deposits.

[3] Fremling (1985) noted that, even during the 1929-31 period, the U.S. share of world gold reserves actually declined. However, her calculation includes the extraordinary outflow of gold from the U.S. in the second half of 1931. The U.S. share of global gold reserves rose from June 1928 to June 1931.

The Hawley-Smoot Tariff and the Great Depression

The role of the Hawley-Smoot Tariff (aka Smoot-Hawley Tariff) in causing the Great Depression has been an ongoing subject of controversy for close to a century. Ron Batchelder and I wrote a paper (“Debt, Deflation and the Great Depression”) published in this volume (Money and Banking: The American Experience) that offered an explanation of the mechanism by which the tariff contributed to the Great Depression. That paper was written before and inspired another paper “Pre-Keynesian Theories of the Great Depression: What Ever Happened to Hawtrey and Cassell“) I am now revising the paper for republication, and here is the new version of the relevant section discussing the Hawley-Smoot Tariff.

Monetary disorder was not the only legacy of World War I. The war also left a huge burden of financial obligations in its wake. The European allies had borrowed vast sums from the United States to finance their war efforts, and the Treaty of Versailles imposed on Germany the obligation to pay heavy reparations to the allies, particularly to France.

We need not discuss the controversial question whether the burden imposed on Germany was too great to have been discharged. The relevant question for our purposes is by what means the reparations and war debts could be paid, or, at least, carried forward without causing a default on the obligations. To simplify the discussion, we concentrate on the relationship between the U.S. and Germany, because many of the other obligations of the allies to the U.S. were offset by those of Germany to the allies.[1]

The debt to the U.S. could be extinguished either by a net payment in goods reflected in a German balance-of-trade surplus and a U.S. balance-of-trade deficit, or by a transfer of gold from Germany to the U.S. Stretching out the debt would have required the U.S., in effect to lend Germany the funds required to service its obligations.

For most of the 1920s, the U.S. did in fact lend heavily to Germany, thereby lending Germany the funds to meet its financial obligations to the U.S. (and its European creditors). U.S. lending was not explicitly for that purpose, but on the consolidated national balance sheets, U.S. lending offset German financial obligations, obviating any real transfer.

Thus, to avoid a transfer, in goods or specie, from Germany to the U.S., continued U.S. lending to Germany was necessary. But the sharp tightening of monetary policy by the Federal Reserve in 1928 raised domestic interest rates to near record levels and curtailed lending abroad, as foreign borrowers were discouraged from seeking funds in U.S. capital markets. Avoiding an immediate transfer from Germany to the U.S. was no longer possible except by default. To effect the necessary transfer in goods, Germany would have been required to shift resources from its non-tradable-goods sector to its tradable-goods sector, which would require reducing spending on, and the relative prices of, non-tradable goods. Thus, Germany began to slide into a recession in 1928.

In 1929 the United States began making the transfer even more difficult when the newly installed Hoover administration reaffirmed the Republican campaign commitment to raising U.S. tariffs, thereby imposing a tax on the goods transfer through which Germany could discharge its obligations. Although the bill to increase tariffs that became the infamous Hawley-Smoot Act was not passed until 1930, the commitment to raise tariffs made it increasingly unlikely that the U.S. would allow the debts owed it to be discharged by a transfer of goods. The only other means by which Germany could discharge its obligations was a transfer of gold. Anticipating that its obligations to the U.S. could be discharged only by transferring gold, Germany took steps to increase its gold holdings to be able to meet its debt obligations. The increased German demand for gold was reflected in a defensive tightening of monetary policy to raise domestic interest rates to reduce spending and to induce an inflow of gold to Germany.

The connection between Germany’s debt obligations and its demand for gold sheds light on the deflationary macroeconomic consequences of the Hawley-Smoot tariff. Given the huge debts owed to the United States, the tariff imposed a deflationary monetary policy on all U.S. debtors as they attempted to accumulate sufficient gold to be able to service their debt obligations to the U.S. But, under the gold standard, the United States could not shield itself from the deflationary effects that its trade policy was imposing on its debtors.[2]

The U.S. could have counteracted these macroeconomic pressures by a sufficiently expansive monetary policy, thereby satisfying the demand of other countries for gold. Monetary expansion would have continued, by different means, the former policy of lending to debtors, enabling them to extend their obligations. But preoccupied with, or distracted by the stock-market boom, U.S. monetary authorities were oblivious to the impossible alternatives that were being forced on U.S. debtors by a combination of tight U.S. monetary policy and a protectionist trade policy.

As the prospects that protectionist legislation would pass steadily improved even as tight U.S. monetary policy was being maintained, deflationary signs became increasingly clear and alarming. The panic of October 1929, in our view, was not, as much Great Depression historiography describes it, the breaking of a speculative bubble, but a correct realization that a toxic confluence of monetary and trade policies was leading the world over a deflationary precipice.

Once the deflation took hold, the nature of the gold standard with a fixed price of gold was such that gold would likely appreciate against weak currencies that were likely to be formally devalued, or allowed to float, relative to gold. A vicious cycle of increasing speculative demand for gold in anticipation of currency devaluation further intensified the deflationary pressures (Hamilton, 1988). Moreover, successive devaluations by one country at a time increased the deflationary pressure in the remaining gold-standard countries. A uniform all-around devaluation might have had some chance of quickly controlling the deflationary process, but piecemeal deflation could only prolong the deflationary pressure on nations that remained on the gold standard.

FOOTNOTES

[1] The United States, as a matter of law, always resisted such a comparison, contending that the war debts were commercial obligations in no way comparable to the politically imposed reparations. However, as a final matter, there was obviously a strict correspondence between the two sets of obligations. The total size of German obligations was never precisely determined. However, those obligations were certainly several times the size of the war debts owed the United States. Focusing simply on the U.S.-German relationship is therefore simply a heuristic device.

[2] Viewed from a different perspective, the tariff aimed at transferring wealth from the foreign debtors to the U.S. government by taxing debt payments on debt already fixed in nominal terms. Moreover, deflation from whatever source increased the real value of the fixed nominal debts owed the U.S.

The Real-Bills Doctrine, the Lender of Last Resort, and the Scope of Banking

Here is another section from my work in progress on the Smithian and Humean traditions in monetary economics. The discussion starts with a comparison of the negative view David Hume took toward banks and the positive view taken by Adam Smith which was also discussed in the previous post on the price-specie-flow mechanism. This section discusses how Smith, despite viewing banks positively, also understood that banks can be a source of disturbances as well as of efficiencies, and how he addressed that problem and how his followers who shared a positive view toward banks addressed the problem. Comments and feedback are welcome and greatly appreciated.

Hume and Smith had very different views about fractional-reserve banking and its capacity to provide the public with the desired quantity of money (banknotes and deposits) and promote international adjustment. The cash created by banks consists of liabilities on themselves that they exchange for liabilities on the public. Liabilities on the public accepted by banks become their assets, generating revenue streams with which banks cover their outlays including obligations to creditors and stockholders.

The previous post focused on the liability side of bank balance sheets, and whether there are economic forces that limit the size of those balance sheets, implying a point of equilibrium bank expansion. Believing that banks have an unlimited incentive to issue liabilities, whose face value exceeds their cost of production, Hume considered banks dangerous and inflationary. Smith disagreed, arguing that although bank money is a less costly alternative to the full-bodied money preferred by Hume, banks don’t create liabilities limitlessly, because, unless those liabilities generate corresponding revenue streams, they will be unable to redeem those liabilities, which their creditors may require of them, at will. To enhance the attractiveness of those liabilities and to increase the demand to hold them, competitive banks promise to convert those liabilities, at a stipulated rate, into an asset whose value they do not control. Under those conditions, banks have neither the incentive nor the capacity to cause inflation.

I turn now to a different topic: whether Smith’s rejection of the idea that banks are systematically biased toward overissuing liabilities implies that banks require no external control or intervention. I begin by briefly referring to Smith’s support of the real-bills doctrine and then extend that discussion to two other issues: the lender of last resort and the scope of banking.

A         Real-Bills Doctrine

I have argued elsewhere that, besides sketching the outlines of Fullarton’s argument for the Law of Reflux, Adam Smith recommended that banks observe a form of the real-bills doctrine, namely that banks issue sight liabilities only in exchange for real commercial bills of short (usually 90-days) duration. Increases in the demand for money cause bank balance sheets to expand; decreases cause them to contract. Unlike Mints (1945), who identified the Law of Reflux with the real-bills doctrine, I suggested that Smith viewed the real-bills doctrine as a pragmatic policy to facilitate contractions in the size of bank balance sheets as required by the reflux of their liabilities. With the discrepancy between the duration of liabilities and assets limited by issuing sight liabilities only in exchange for short-term bills, bank balance sheets would contract automatically thereby obviating, at least in part, the liquidation of longer-term assets at depressed prices.

On this reading, Smith recognized that banking policy ought to take account of the composition of bank balance sheets, in particular, the sort of assets that banks accept as backing for the sight liabilities that they issue. I would also emphasize that on this interpretation, Smith did not believe, as did many later advocates of the doctrine, that lending on the security of real bills is sufficient to prevent the price level from changing. Even if banks have no systematic incentive to overissue their liabilities, unless those liabilities are made convertible into an asset whose value is determined independently of the banks, the value of their liabilities is undetermined. Convertibility is how banks anchor the value of their liabilities, thereby increasing the attractiveness of those liabilities to the public and the willingness of the public to accept and hold them.

But Smith’s support for the real-bills doctrine indicates that, while understanding the equilibrating tendencies of competition on bank operations, he also recognized the inherent instability of banking caused by fluctuations in the value and liquidity of their assets. Smith’s support for the real-bills doctrine addressed one type of instability: the maturity mismatch between banks’ assets and liabilities. But there are other sources of instability, which may require further institutional or policy measures beyond the general laws of property and contract whose application and enforcement, in Smith’s view, generally sufficed for the self-interested conduct of private firms to lead to socially benign outcomes.

In the remainder of this section, I consider two other methods of addressing the vulnerability of bank assets to sudden losses of value: (1) the creation or empowerment of a lender of last resort capable of lending to illiquid, but solvent, banks possessing good security (valuable assets) as collateral against which to borrow, and (2) limits beyond the real-bills doctrine over the permissible activities undertaken by commercial banks.

B         Lender of Last Resort

Although the real-bills doctrine limits the exposure of bank balance sheets to adverse shocks on the value of long-term liabilities, even banks whose liabilities were issued in exchange for short-term real bills of exchange may be unable to meet all demands for redemption in periods of extreme financial distress, when debtors cannot sell their products at the prices they expected and cannot meet their own obligations to their creditors. If banks are called upon to redeem their liabilities, banks may be faced with a choice between depleting their own cash reserves, when they are most needed, or liquidating other assets at substantial, if not catastrophic, losses.

Smith’s version of the real-bills doctrine addressed one aspect of balance-sheet risk, but the underlying problem is deeper and more complicated than the liquidity issue that concerned Smith. The assets accepted by banks in exchange for their liabilities are typically not easily marketable, so if those assets must be shed quickly to satisfy demands for payment, banks’ solvency may be jeopardized by consequent capital losses. Limiting portfolios to short-term assets limits exposure to such losses, but only when the disturbances requiring asset liquidation affect only a relatively small number of banks. As the number of affected banks increases, their ability to counter the disturbance is impaired, as the interbank market for credit starts to freeze up or break down entirely, leaving them unable to offer short-term relief to, or receive it from, other momentarily illiquid banks. It is then that emergency lending by a lender of last resort to illiquid, but possibly still solvent, banks is necessary.

What causes a cluster of expectational errors by banks in exchanging their liabilities for assets supplied by their customers that become less valuable than they were upon acceptance? Are financial crises that result in, or are caused by, asset write downs by banks caused by random clusters of errors by banks, or are there systematic causes of such errors? Does the danger lie in the magnitude of the errors or in the transmission mechanism?

Here, too, the Humean and Smithian traditions seem to be at odds, offering different answers to problems, or, if not answers, at least different approaches to problems. Focusing on the liability side of bank balance sheets, the Humean tradition emphasizes the expansion of bank lending and the consequent creation of banknotes or deposits as the main impulse to macroeconomic fluctuations, a boom-bust or credit cycle triggered by banks’ lending to finance either business investment or consumer spending. Despite their theoretical differences, both Austrian business-cycle theory and Friedmanite Monetarism share a common intellectual ancestry, traceable by way of the Currency School to Hume, identifying the source of business-cycle fluctuations in excessive growth in the quantity of money.

The eclectic Smithian tradition accommodates both monetary and non-monetary business-cycle theories, but balance-sheet effects on banks are more naturally accommodated within the Smithian tradition than the Humean tradition with its focus on the liabilities not the assets of banks. At any rate, more research is necessary before we can decide whether serious financial disturbances result from big expectational errors or from contagion effects.

The Great Depression resulted from a big error. After the steep deflation and depression of 1920-22, followed by a gradual restoration of the gold standard, fears of further deflation were dispelled and steady economic expansion, especially in the United States, resulted. Suddenly in 1929, as France and other countries rejoined the gold standard, the fears voiced by Hawtrey and Cassel that restoring the gold standard could have serious deflationary consequences appeared increasingly more likely to be realized. Real signs of deflation began to appear in the summer of 1929, and in the fall the stock market collapsed. Rather than use monetary policy to counter incipient deflation, policy makers and many economists argued that deflation was part of the solution not the problem. And the Depression came.

It is generally agreed that the 2008 financial crisis that triggered the Little Depression (aka Great Recession) was largely the result of a housing bubble fueled by unsound mortgage lending by banks and questionable underwriting practices in packaging and marketing of mortgage-backed securities. However, although the housing bubble seems to have burst the spring of 2007, the crisis did not start until September 2008.

It is at least possible, as I have argued (Glasner 2018) that, despite the financial fragility caused by the housing bubble and unsound lending practices that fueled the bubble, the crisis could have been avoided but for a reflexive policy tightening by the Federal Reserve starting in 2007 that caused a recession starting in December 2007 and gradually worsening through the summer of 2008. Rather than ease monetary policy as the recession deepened, the Fed, distracted by rising headline inflation owing to rising oil prices that summer, would not reduce its interest-rate target further after March 2008. If my interpretation is correct, the financial crisis of 2008 and the subsequent Little Depression (aka Great Recession) were as much caused by bad monetary policy as by the unsound lending practices and mistaken expectations by lenders.

It is when all agents are cash constrained that a lender of last resort that is able to provide the liquidity that the usual suppliers of liquidity cannot provide, but are instead demanding, is necessary to avoid a systemic breakdown. In 2008, the Fed was unwilling to satisfy demands for liquidity until the crisis had deteriorated to the point of a worldwide collapse. In the nineteenth century, Thornton and Fullarton understood that the Bank of England was uniquely able to provide liquidity in such circumstances, recommending that it lend freely in periods of financial stress.

That policy was not viewed favorably either by Humean supporters of the Currency Principle, opposed to all forms of fractional-reserve banking, or by Smithian supporters of free banking who deplored the privileged central-banking position granted to the Bank of England. Although the Fed in 2008 acknowledged that it was both a national and international lender of last resort, it was tragically slow to take the necessary actions to end the crisis after allowing it to spiral nearly out of control.

While cogent arguments have been made that a free-banking alternative to the lender-of-last-resort services of the Bank of England might have been possible in the nineteenth century,[2] even a free-banking system would require a mechanism for handling periods of financial stress. Free-banking supporters argue that bank clearinghouses have emerged spontaneously in the absence of central banks, and could provide the lender-of-last resort services provided by central banks. But, insofar as bank clearinghouses would take on the lender-of-last-resort function, which involves some intervention and supervision of bank activities by either the clearinghouse or the central bank, the same anticompetitive or cartelistic objections to the provision of lender-of-last-resort services by central banks also would apply to the provision of those services by clearinghouses. So, the tension between libertarian, free-market principles and lender-of-last-resort services would not necessarily be eliminated bank clearinghouses instead of central banks provided those services.

This is an appropriate place to consider Walter Bagehot’s contribution to the lender-of-last-resort doctrine. Building on the work of Thornton and Fullarton, Bagehot formulated the classic principle that, during times of financial distress, the Bank of England should lend freely at a penalty rate to banks on good security. Bagehot, himself, admitted to a certain unease in offering this advice, opining that it was regrettable that the Bank of England achieved a pre-eminent position in the British banking system, so that a decentralized banking system, along the lines of the Scottish free-banking system, could have evolved. But given the historical development of British banking, including the 1844 Bank Charter Act, Bagehot, an eminently practical man, had no desire to recommend radical reform, only to help the existing system operate as smoothly as it could be made to operate.

But the soundness of Bagehot’s advice to lend freely at a penalty rate is dubious. In a financial crisis, the market rate of interest primarily reflects a liquidity premium not an expected real return on capital, the latter typically being depressed in a crisis. Charging a penalty rate to distressed borrowers in a crisis only raises the liquidity premium. Monetary policy ought to aim to reduce, not to increase, that premium. So Bagehot’s advice, derived from a misplaced sense of what is practical and prudent and financially sound, rather than from sound analysis, was far from sound.

Under the gold standard, or under any fixed-exchange-rate regime, a single country has an incentive to raise interest rates above the rates of other countries to prevent a gold outflow or attract an inflow. Under these circumstances, a failure of international cooperation can lead to competitive rate increases as monetary authorities scramble to maintain or increase their gold reserves. In testimony to the Macmillan Commission in 1930, Ralph Hawtrey masterfully described the obligation of a central bank in a crisis. Here is his exchange with the Chairman of the Commission Hugh Macmillan:

MACMILLAN: Suppose . . . without restricting credit . . . that gold had gone out to a very considerable extent, would that not have had very serious consequences on the international position of London?

HAWTREY: I do not think the credit of London depends on any particular figure of gold holding. . . . The harm began to be done in March and April of 1925 [when] the fall in American prices started. There was no reason why the Bank of England should have taken ny action at that time so far as the question of loss of gold is concerned. . . . I believed at the time and I still think that the right treatment would have been to restore the gold standard de facto before it was restored de jure. That is what all the other countries have done. . . . I would have suggested that we should have adopted the practice of always selling gold to a sufficient extent to prevent the exchange depreciating. There would have been no legal obligation to continue convertibility into gold . . . If that course had been adopted, the Bank of England would never have been anxious about the gold holding, they would have been able to see it ebb away to quite a considerable extent with perfect equanimity, . . and might have continued with a 4 percent Bank Rate.

MACMILLAN: . . . the course you suggest would not have been consistent with what one may call orthodox Central Banking, would it?

HAWTREY: I do not know what orthodox Central Banking is.

MACMILLAN: . . . when gold ebbs away you must restrict credit as a general principle?

HAWTREY: . . . that kind of orthodoxy is like conventions at bridge; you have to break them when the circumstances call for it. I think that a gold reserve exists to be used. . . . Perhaps once in a century the time comes when you can use your gold reserve for the governing purpose, provided you have the courage to use practically all of it.

Hawtrey here was echoing Fullarton’s insight that there is no rigid relationship between the gold reserves held by the Bank of England and the total quantity of sight liabilities created by the British banking system. Rather, he argued, the Bank should hold an ample reserve sufficient to satisfy the demand for gold in a crisis when a sudden and temporary demand for gold had to be accommodated. That was Hawtrey’s advice, but not Bagehot’s, whose concern was about banks’ moral hazard and imprudent lending in the expectation of being rescued in a crisis by the Bank of England. Indeed, moral hazard is a problem, but in a crisis it is a secondary problem, when, as Hawtrey explained, alleviating the crisis, not discouraging moral hazard, must be the primary concern of the lender of last resort.

            C         Scope of Banking

Inclined to find remedies for financial distress in structural reforms limiting the types of assets banks accept in exchange for their sight liabilities, Smith did not recommend a lender of last resort.[3] Another method of reducing risk, perhaps more in tune with the Smithian real-bills doctrine than a lender of last resort, is to restrict the activities of banks that issue banknotes and deposits.

In Anglophone countries, commercial banking generally evolved as separate and distinct from investment banking. It was only during the Great Depression and the resulting wave of bank failures that the combination of commercial and investment banking was legally prohibited by the Glass-Steagall Act, eventually repealed in 1999. On the Continent, where commercial banking penetrated less deeply into the fabric of economic and commercial life than in Anglophone countries, commercial banking developed more or less along with investment banking in what are called universal banks.

Whether the earlier, and more widespread, adoption of commercial banking in Anglophone countries than on the Continent advanced the idea that no banking institution should provide both commercial- and investment-banking services is not a question about which I offer a conjecture, but it seems a topic worthy of study. The Glass-Steagall Act, which enforced that separation after being breached early in the twentieth century, a breach thought by some to have contributed to US bank failures in the Great Depression, was based on a presumption against combining and investment-banking in a single institution. But even apart from the concerns that led to enactment of Glass-Steagall, limiting the exposure of commercial banks, which supply most of the cash held by the public, to the balance-sheet risk associated with investment-banking activities seems reasonable. Moreover, the adoption of government deposit insurance after the Great Depression as well as banks’ access to the discount window of the central bank may augment the moral hazard induced by deposit insurance and a lender of last resort, offsetting potential economies of scope associated with combining commercial and investment banking.

Although legal barriers to the combination of commercial and investment banking have long been eliminated, proposals for “narrow banking” that would restrict the activities undertaken by commercial banks continue to be made. Two different interpretations of narrow banking – one Smithian and one Humean – are possible.

The Humean concern about banking was that banks are inherently disposed to overissue their liabilities. The Humean response to the concern has been to propose 100-percent reserve banking, a comprehensive extension of the 100-percent marginal reserve requirement on the issue of banknotes imposed by the Bank Charter Act. Such measures could succeed, as some supporters (Simons 1936) came to realize, only if accompanied by a radical change the financial practices and arrangements on which all debt contracts are based. It is difficult to imagine that the necessary restructuring of economic activity would ever be implemented or tolerated.

The Humean concern was dismissed by the Smithian tradition, recognizing that banks, even if unconstrained by reserve requirements, have no incentive to issue liabilities without limit. The Smithian concern was whether banks could cope with balance-sheet risks after unexpected losses in the value of their assets. Although narrow banking proposals are a legitimate and possibly worthwhile response to that concern, the acceptance by central banks of responsibility to act as a lender of last resort and widespread government deposit insurance to dampen contagion effects have taken the question of narrowing or restricting the functions of money-creating banks off the table. Whether a different strategy for addressing the systemic risks associated with banks’ creation of money by relying solely on deposit insurance and a lender of last resort is a question that still deserves thoughtful attention.

On the Price Specie Flow Mechanism

I have been working on a paper tentatively titled “The Smithian and Humean Traditions in Monetary Theory.” One section of the paper is on the price-specie-flow mechanism, about which I wrote last month in my previous post. This section develops the arguments of the previous post at greater length and draws on a number of earlier posts that I’ve written about PSFM as well (e.g., here and here )provides more detailed criticisms of both PSFM and sterilization and provides some further historical evidence to support some of the theoretical arguments. I will be grateful for any comments and feedback.

The tortured intellectual history of the price-specie-flow mechanism (PSFM) received its still classic exposition in a Hume (1752) essay, which has remained a staple of the theory of international adjustment under the gold standard, or any international system of fixed exchange rates. Regrettably, the two-and-a-half-century life span of PSFM provides no ground for optimism about the prospects for progress in what some are pleased to call without irony economic science.

PSFM describes how, under a gold standard, national price levels tend to be equalized, with deviations between the national price levels in any two countries inducing gold to be shipped from the country with higher prices to the one with lower prices until prices are equalized. Premised on a version of the quantity theory of money in which (1) the price level in each country on the gold standard is determined by the quantity of money in that country, and (2) money consists entirely in gold coin or bullion, Hume elegantly articulated a model of disturbance and equilibration after an exogenous change in the gold stock in one country.

Viewing banks as inflationary engines of financial disorder, Hume disregarded banks and the convertible monetary liabilities of banks in his account of PSFM, leaving to others the task of describing the international adjustment process under a gold standard with fractional-reserve banking. The task of devising an institutional framework, within which PSFM could operate, for a system of fractional-reserve banking proved to be problematic and ultimately unsuccessful.

For three-quarters of a century, PSFM served a purely theoretical function. During the Bullionist debates of the first two decades of the nineteenth century, triggered by the suspension of the convertibility of the pound sterling into gold in 1797, PSFM served as a theoretical benchmark not a guide for policy, it being generally assumed that, when convertibility was resumed, international monetary equilibrium would be restored automatically.

However, the 1821 resumption was followed by severe and recurring monetary disorders, leading some economists, who formed what became known as the Currency School, to view PSFM as a normative criterion for ensuring smooth adjustment to international gold flows. That criterion, the Currency Principle, stated that the total currency in circulation in Britain should increase or decrease by exactly as much as the amount of gold flowing into or out of Britain.[1]

The Currency Principle was codified by the Bank Charter Act of 1844. To mimic the Humean mechanism, it restricted, but did not suppress, the right of note-issuing banks in England and Wales, which were allowed to continue issuing notes, at current, but no higher, levels, without holding equivalent gold reserves. Scottish and Irish note-issuing banks were allowed to continue issuing notes, but could increase their note issue only if matched by increased holdings of gold or government debt. In England and Wales, the note issue could increase only if gold was exchanged for Bank of England notes, so that a 100-percent marginal gold reserve requirement was imposed on additional banknotes.

Opposition to the Bank Charter Act was led by the Banking School, notably John Fullarton and Thomas Tooke. Rejecting the Humean quantity-theoretic underpinnings of the Currency School and the Bank Charter Act, the Banking School rejected the quantitative limits of the Bank Charter Act as both unnecessary and counterproductive, because banks, obligated to redeem their liabilities directly or indirectly in gold, issue liabilities only insofar as they expect those liabilities to be willingly held by the public, or, if not, are capable of redeeming any liabilities no longer willingly held. Rather than the Humean view that banks issue banknotes or create deposits without constraint, the Banking School held Smith’s view that banks issue money in a form more convenient to hold and to transact with than metallic money, so that bank money allows an equivalent amount of gold to be shifted from monetary to real (non-monetary) uses, providing a net social savings. For a small open economy, the diversion (and likely export) of gold bullion from monetary to non-monetary uses has negligible effect on prices (which are internationally, not locally, determined).

The quarter century following enactment of the Bank Charter Act showed that the Act had not eliminated monetary disturbances, the government having been compelled to suspend the Act in 1847, 1857 and 1866 to prevent incipient crises from causing financial collapse. Indeed, it was precisely the fear that liquidity might not be forthcoming that precipitated increased demands for liquidity that the Act made it impossible to accommodate. Suspending the Act was sufficient to end the crises with limited intervention by the Bank. [check articles on the crises of 1847, 1857 and 1866.]

It may seem surprising, but the disappointing results of the Bank Charter Act provided little vindication to the Banking School. It led only to a partial, uneasy, and not entirely coherent, accommodation between PSFM doctrine and the reality of a monetary system in which the money stock consists mostly of banknotes and bank deposits issued by fractional-reserve banks. But despite the failure of the Bank Charter Act, PSFM achieved almost canonical status, continuing, albeit with some notable exceptions, to serve as the textbook model of the gold standard.

The requirement that gold flows induce equal changes in the quantity of money within a country into (or from) which gold is flowing was replaced by an admonition that gold flows lead to “appropriate” changes in the central-bank discount rate or an alternative monetary instrument to cause the quantity of money to change in the same direction as the gold flow. While such vague maxims, sometimes described as “the rules of the game,” gave only directional guidance about how to respond to change in gold reserves, their hortatory character, and avoidance of quantitative guidance, allowed monetary authorities latitude to avoid the self-inflicted crises that had resulted from the quantitative limits of the Bank Charter Act.

Nevertheless, the myth of vague “rules” relating the quantity of money in a country to changes in gold reserves, whose observance ensured the smooth functioning of the international gold standard before its collapse at the start of World War I, enshrined PSFM as the theoretical paradigm for international monetary adjustment under the gold standard.

That paradigm was misconceived in four ways that can be briefly summarized.

  • Contrary to PSFM, changes in the quantity of money in a gold-standard country cannot change local prices proportionately, because prices of tradable goods in that country are constrained by arbitrage to equal the prices of those goods in other countries.
  • Contrary to PSFM, changes in local gold reserves are not necessarily caused either by non-monetary disturbances such as shifts in the terms of trade between countries or by local monetary disturbances (e.g. overissue by local banks) that must be reversed or counteracted by central-bank policy.
  • Contrary to PSFM, changes in the national price levels of gold-standard countries were uncorrelated with gold flows, and changes in national price levels were positively, not negatively, correlated.
  • Local banks and monetary authorities exhibit their own demands for gold reserves, demands exhibited by choice (i.e., independent of legally required gold holdings) or by law (i.e., by legally requirement to hold gold reserves equal to some fraction of banknotes issued by banks or monetary authorities). Such changes in gold reserves may be caused by changes in the local demands for gold by local banks and the monetary authorities in one or more countries.

Many of the misconceptions underlying PSFM were identified by Fullarton’s refutation of the Currency School. In articulating the classical Law of Reflux, he established the logical independence of the quantity convertible money in a country from by the quantity of gold reserves held by the monetary authority. The gold reserves held by individual banks, or their deposits with the Bank of England, are not the raw material from which banks create money, either banknotes or deposits. Rather, it is their creation of banknotes or deposits when extending credit to customers that generates a derived demand to hold liquid assets (i.e., gold) to allow them to accommodate the demands of customers and other banks to redeem banknotes and deposits. Causality runs from creating banknotes and deposits to holding reserves, not vice versa.

The misconceptions inherent in PSFM and the resulting misunderstanding of gold flows under the gold standard led to a further misconception known as sterilization: the idea that central banks, violating the obligations imposed by “the rules of the game,” do not allow, or deliberately prevent, local money stocks from changing as their gold holdings change. The misconception is the presumption that gold inflows ought necessarily cause increases in local money stocks. The mechanisms causing local money stocks to change are entirely different from those causing gold flows. And insofar as those mechanisms are related, causality flows from the local money stock to gold reserves, not vice versa.

Gold flows also result when monetary authorities transform their own asset holdings into gold. Notable examples of such transformations occurred in the 1870s when a number of countries abandoned their de jure bimetallic (and de facto silver) standards to the gold standard. Monetary authorities in those countries transformed silver holdings into gold, driving the value of gold up and silver down. Similarly, but with more catastrophic consequences, the Bank of France, in 1928 after France restored the gold standard, began redeeming holdings of foreign-exchange reserves (financial claims on the United States or Britain, payable in gold) into gold. Following the French example, other countries rejoining the gold standard redeemed foreign exchange for gold, causing gold appreciation and deflation that led to the Great Depression.

Rereading the memoirs of this splendid translation . . . has impressed me with important subtleties that I missed when I read the memoirs in a language not my own and in which I am far from completely fluent. Had I fully appreciated those subtleties when Anna Schwartz and I were writing our A Monetary History of the United States, we would likely have assessed responsibility for the international character of the Great Depression somewhat differently. We attributed responsibility for the initiation of a worldwide contraction to the United States and I would not alter that judgment now. However, we also remarked, “The international effects were severe and the transmission rapid, not only because the gold-exchange standard had rendered the international financial system more vulnerable to disturbances, but also because the United States did not follow gold-standard rules.” Were I writing that sentence today, I would say “because the United States and France did not follow gold-standard rules.”

I pause to note for the record Friedman’s assertion that the United States and France did not follow “gold-standard rules.” Warming up to the idea, he then accused them of sterilization.

Benjamin Strong and Emile Moreau were admirable characters of personal force and integrity. But . . .the common policies they followed were misguided and contributed to the severity and rapidity of transmission of the U.S. shock to the international community. We stressed that the U.S. “did not permit the inflow of gold to expand the U.S. money stock. We not only sterilized it, we went much further. Our money stock moved perversely, going down as the gold stock went up” from 1929 to 1931.

Strong and Moreau tried to reconcile two ultimately incompatible objectives: fixed exchange rates and internal price stability. Thanks to the level at which Britain returned to gold in 1925, the U.S. dollar was undervalued, and thanks to the level at which France returned to gold at the end of 1926, so was the French franc. Both countries as a result experienced substantial gold inflows. Gold-standard rules called for letting the stock of money rise in response to the gold inflows and for price inflation in the U.S. and France, and deflation in Britain, to end the over-and under-valuations. But both Strong and Moreau were determined to prevent inflation and accordingly both sterilized the gold inflows, preventing them from providing the required increase in the quantity of money.

Friedman’s discussion of sterilization is at odds with basic theory. Working with a naïve version of PSFM, he imagines that gold flows passively respond to trade balances independent of monetary forces, and that the monetary authority under a gold standard is supposed to ensure that the domestic money stock varies roughly in proportion to its gold reserves. Ignoring the international deflationary dynamic, he asserts that the US money stock perversely declined from 1929 to 1931, while its gold stock increased. With a faltering banking system, the public shifted from holding demand deposits to currency. Gold reserves were legally required against currency, but not against demand deposits, so the shift from deposits to currency entailed an increase gold reserves. To be sure the increased US demand for gold added to upward pressure on value of gold, and to worldwide deflationary pressure. But US gold holdings rose by only $150 million from December 1929 to December 1931 compared with an increase of $1.06 billion in French gold holdings over the same period. Gold accumulation by the US and its direct contribution to world deflation during the first two years of the Depression was small relative to that of France.

Friedman also erred in stating “the common policies they followed were misguided and contributed to the severity and rapidity of transmission of the U.S. shock to the international community.” The shock to the international community clearly originated not in the US but in France. The Fed could have absorbed and mitigated the shock by allowing a substantial outflow of its huge gold reserves, but instead amplified the shock by raising interest rates to nearly unprecedented levels, causing gold to flow into the US.

After correctly noting the incompatibility between fixed exchange rates and internal price stability, Friedman contradicts himself by asserting that, in seeking to stabilize their internal price levels, Strong and Moreau violated the gold-standard “rules,” as if it were rules, not arbitrage, that constrain national price to converge toward a common level under a gold standard.

Friedman’s assertion that, after 1925, the dollar was undervalued and sterling overvalued was not wrong. But he misunderstood the consequences of currency undervaluation and overvaluation under the gold standard, a confusion stemming from the underlying misconception, derived from PSFM, that foreign exchange rates adjust to balance trade flows, so that, in equilibrium, no country runs a trade deficit or trade surplus.

Thus, in Friedman’s view, dollar undervaluation and sterling overvaluation implied a US trade surplus and British trade deficit, causing gold to flow from Britain to the US. Under gold-standard “rules,” the US money stock and US prices were supposed to rise and the British money stock and British prices were supposed to fall until undervaluation and overvaluation were eliminated. Friedman therefore blamed sterilization of gold inflows by the Fed for preventing the necessary increase in the US money stock and price level to restore equilibrium. But, in fact, from 1925 through 1928, prices in the US were roughly stable and prices in Britain fell slightly. Violating gold-standard “rules” did not prevent the US and British price levels from converging, a convergence driven by market forces, not “rules.”

The stance of monetary policy in a gold-standard country had minimal effect on either the quantity of money or the price level in that country, which were mainly determined by the internationally determined value of gold. What the stance of national monetary policy determines under the gold standard is whether the quantity of money in the country adjusts to the quantity demanded by a process of domestic monetary creation or withdrawal or by the inflow or outflow of gold. Sufficiently tight domestic monetary policy restricting the quantify of domestic money causes a compensatory gold inflow increasing the domestic money stock, while sufficiently easy money causes a compensatory outflow of gold reducing the domestic money stock. Tightness or ease of domestic monetary policy under the gold standard mainly affected gold and foreign-exchange reserves, and, only minimally, the quantity of domestic money and the domestic price level.

However, the combined effects of many countries simultaneously tightening monetary policy in a deliberate, or even inadvertent, attempt to accumulate — or at least prevent the loss — of gold reserves could indeed drive up the international value of gold through a deflationary process affecting prices in all gold-standard countries. Friedman, even while admitting that, in his Monetary History, he had understated the effect of the Bank of France on the Great Depression, referred only the overvaluation of sterling and undervaluation of the dollar and franc as causes of the Great Depression, remaining oblivious to the deflationary effects of gold accumulation and appreciation.

It was thus nonsensical for Friedman to argue that the mistake of the Bank of France during the Great Depression was not to increase the quantity of francs in proportion to the increase of its gold reserves. The problem was not that the quantity of francs was too low; it was that the Bank of France prevented the French public from collectively increasing the quantity of francs that they held except by importing gold.

Unlike Friedman, F. A. Hayek actually defended the policy of the Bank of France, and denied that the Bank of France had violated “the rules of the game” after nearly quadrupling its gold reserves between 1928 and 1932. Under his interpretation of those “rules,” because the Bank of France increased the quantity of banknotes after the 1928 restoration of convertibility by about as much as its gold reserves increased, it had fully complied with the “rules.” Hayek’s defense was incoherent; under its legal obligation to convert gold into francs at the official conversion rate, the Bank of France had no choice but to increase the quantity of francs by as much as its gold reserves increased.

That eminent economists like Hayek and Friedman could defend, or criticize, the conduct of the Bank of France during the Great Depression, because the Bank either did, or did not, follow “the rules of the game” under which the gold standard operated, shows the uselessness and irrelevance of the “rules of the game” as a guide to policy. For that reason alone, the failure of empirical studies to find evidence that “the rules of the game” were followed during the heyday of the gold standard is unsurprising. But the deeper reason for that lack of evidence is that PSFM, whose implementation “the rules of the game” were supposed to guarantee, was based on a misunderstanding of the international-adjustment mechanism under either the gold standard or any fixed-exchange-rates system.

Despite the grip of PSFM over most of the profession, a few economists did show a deeper understanding of the adjustment mechanism. The idea that the price level in terms of gold directly constrained the movements of national price levels across countries was indeed recognized by writers as diverse as Keynes, Mises, and Hawtrey who all pointed out that the prices of internationally traded commodities were constrained by arbitrage and that the free movement of capital across countries would limit discrepancies in interest rates across countries attached to the gold standard, observations that had already been made by Smith, Thornton, Ricardo, Fullarton and Mill in the classical period. But, until the Monetary Approach to the Balance of Payments became popular in the 1970s, only Hawtrey consistently and systematically deduced the implications of those insights in analyzing both the Great Depression and the Bretton Woods system of fixed, but adjustable, exchange rates following World War II.

The inconsistencies and internal contradictions of PSFM were sometimes recognized, but usually overlooked, by business-cycle theorists when focusing on the disturbing influence of central banks, perpetuating mistakes of the Humean Currency School doctrine that attributed cyclical disturbances to the misbehavior of local banking systems that were inherently disposed to overissue their liabilities.

White and Hogan on Hayek and Cassel on the Causes of the Great Depression

Lawrence White and Thomas Hogan have just published a new paper in the Journal of Economic Behavior and Organization (“Hayek, Cassel, and the origins of the great depression”). Since White is a leading Hayek scholar, who has written extensively on Hayek’s economic writings (e.g., his important 2008 article “Did Hayek and Robbins Deepen the Great Depression?”) and edited the new edition of Hayek’s notoriously difficult volume, The Pure Theory of Capital, when it was published as volume 11 of the Collected Works of F. A. Hayek, the conclusion reached by the new paper that Hayek had a better understanding than Cassel of what caused the Great Depression is not, in and of itself, surprising.

However, I admit to being taken aback by the abstract of the paper:

We revisit the origins of the Great Depression by contrasting the accounts of two contemporary economists, Friedrich A. Hayek and Gustav Cassel. Their distinct theories highlight important, but often unacknowledged, differences between the international depression and the Great Depression in the United States. Hayek’s business cycle theory offered a monetary overexpansion account for the 1920s investment boom, the collapse of which initiated the Great Depression in the United States. Cassel’s warnings about a scarcity gold reserves related to the international character of the downturn, but the mechanisms he emphasized contributed little to the deflation or depression in the United States.

I wouldn’t deny that there are differences between the way the Great Depression played out in the United States and in the rest of the world, e.g., Britain and France, which to be sure, suffered less severely than did the US or, say, Germany. It is both possible, and important, to explore and understand the differential effects of the Great Depression in various countries. I am sorry to say that White and Hogan do neither. Instead, taking at face value the dubious authority of Friedman and Schwartz’s treatment of the Great Depression in the Monetary History of the United States, they assert that the cause of the Great Depression in the US was fundamentally different from the cause of the Great Depression in many or all other countries.

Taking that insupportable premise from Friedman and Schwartz, they simply invoke various numerical facts from the Monetary History as if those facts, in and of themselves, demonstrate what requires to be demonstrated: that the causes of the Great Depression in the US were different from those of the Great Depression in the rest of the world. That assumption vitiated the entire treatment of the Great Depression in the Monetary History, and it vitiates the results that White and Hogan reach about the merits of the conflicting explanations of the Great Depression offered by Cassel and Hayek.

I’ve discussed the failings of Friedman’s treatment of the Great Depression and of other episodes he analyzed in the Monetary History in previous posts (e.g., here, here, here, here, and here). The common failing of all the episodes treated by Friedman in the Monetary History and elsewhere is that he misunderstood how the gold standard operated, because his model of the gold standard was a primitive version of the price-specie-flow mechanism in which the monetary authority determines the quantity of money, which then determines the price level, which then determines the balance of payments, the balance of payments being a function of the relative price levels of the different countries on the gold standard. Countries with relatively high price levels experience trade deficits and outflows of gold, and countries with relatively low price levels experience trade surpluses and inflows of gold. Under the mythical “rules of the game” under the gold standard, countries with gold inflows were supposed to expand their money supplies, so that prices would rise and countries with outflows were supposed to reduce their money supplies, so that prices fall. If countries followed the rules, then an international monetary equilibrium would eventually be reached.

That is the model of the gold standard that Friedman used throughout his career. He was not alone; Hayek and Mises and many others also used that model, following Hume’s treatment in his essay on the balance of trade. But it’s the wrong model. The correct model is the one originating with Adam Smith, based on the law of one price, which says that prices of all commodities in terms of gold are equalized by arbitrage in all countries on the gold standard.

As a first approximation, under the Smithean model, there is only one price level adjusted for different currency parities for all countries on the gold standard. So if there is deflation in one country on the gold standard, there is deflation for all countries on the gold standard. If the rest of the world was suffering from deflation under the gold standard, the US was also suffering from a deflation of approximately the same magnitude as every other country on the gold standard was suffering.

The entire premise of the Friedman account of the Great Depression, adopted unquestioningly by White and Hogan, is that there was a different causal mechanism for the Great Depression in the United States from the mechanism operating in the rest of the world. That premise is flatly wrong. The causation assumed by Friedman in the Monetary History was the exact opposite of the actual causation. It wasn’t, as Friedman assumed, that the decline in the quantity of money in the US was causing deflation; it was the common deflation in all gold-standard countries that was causing the quantity of money in the US to decline.

To be sure there was a banking collapse in the US that was exacerbating the catastrophe, but that was an effect of the underlying cause: deflation, not an independent cause. Absent the deflationary collapse, there is no reason to assume that the investment boom in the most advanced and most productive economy in the world after World War I was unsustainable as the Hayekian overinvestment/malinvestment hypothesis posits with no evidence of unsustainability other than the subsequent economic collapse.

So what did cause deflation under the gold standard? It was the rapid increase in the monetary demand for gold resulting from the insane policy of the Bank of France (disgracefully endorsed by Hayek as late as 1932) which Cassel, along with Ralph Hawtrey (whose writings, closely parallel to Cassel’s on the danger of postwar deflation, avoid all of the ancillary mistakes White and Hogan attribute to Cassel), was warning would lead to catastrophe.

It is true that Cassel also believed that over the long run not enough gold was being produced to avoid deflation. White and Hogan spend inordinate space and attention on that issue, because that secular tendency toward deflation is entirely different from the catastrophic effects of the increase in gold demand in the late 1920s triggered by the insane policy of the Bank of France.

The US could have mitigated the effects if it had been willing to accommodate the Bank of France’s demand to increase its gold holdings. Of course, mitigating the effects of the insane policy of the Bank of France would have rewarded the French for their catastrophic policy, but, under the circumstances, some other means of addressing French misconduct would have spared the world incalculable suffering. But misled by an inordinate fear of stock market speculation, the Fed tightened policy in 1928-29 and began accumulating gold rather than accommodate the French demand.

And the Depression came.

A Primer on Say’s Law and Walras’s Law

Say’s Law, often paraphrased as “supply creates its own demand,” is one of oldest “laws” in economics. It is also one of the least understood and most contentious propositions in economics. I am now in the process of revising my current draft of my paper “Say’s Law and the Classical Theory of Depressions,” which surveys and clarifies various interpretations, disputes and misunderstandings about Say’s Law. I thought that a brief update of my section discussing the relationship between Say’s Law and Walras’s Law might make for a useful blogpost. Not only does it discuss the meaning of Say’s Law and its relationship to Walras’s Law, it expands the narrow understanding of Say’s Law and corrects the mistaken view that Say’s Law does not hold in a monetary economy, because, given a demand to hold a pure medium of exchange, real goods may be supplied only to accumulate cash not to obtain real goods and services. IOW, supply may be a demand for cash not for goods. Under this interpretation, Say’s Law is valid only when the economy is in a macro or monetary equilibrium with no excess demand for money.

Here’s my discussion of that logically incorrect belief. (Let me add as a qualification that not only Say’s Law, but Walras’s Law, as I explained elsewhere in my paper, is not valid when there is not a complete set of forward and contingent markets. That’s because to prove Walras’s Law all agents must be optimizing on the same set of prices, whether actual observed prices or expected, but currently unobserved, prices. See also an earlier post about this paper in which I included the relevant excerpt from the paper.)

The argument that a demand to hold cash invalidates Say’s Law, because output may be produced for the purpose of accumulating cash rather than to buy other goods and services is an argument that had been made by nineteenth-century critics of Say’s Law. The argument did not go without response, but the nature and import of the response was not well, or widely, understood, and the criticism was widely credited. Thus, in his early writings on business-cycle theory, F. A. Hayek, making no claim to originality, maintained, matter of factly, that money involves a disconnect between aggregate supply and aggregate demand, describing money as a “loose joint” in the theory of general equilibrium, creating the central theoretical problem to be addressed by business-cycle theory. So, even Hayek in 1927 did not accept the validity of Say’s Law

Oskar Lange (“Say’s Law a Restatement and Criticism”) subsequently formalized the problem, introducing his distinction between Say’s Law and Walras’s Law. Lange defined Walras’s Law as the proposition that the sum of excess demands, corresponding to any price vector announced by a Walrasian auctioneer, must identically equal zero.[1] In a barter model, individual optimization, subject to the budget constraint corresponding to a given price vector, implies that the value of the planned purchases and planned sales by each agent must be exactly equal; if the value of the excess demands of each individual agent is zero the sum of the values of the excess demands of all individuals must also be zero. In a barter model, Walras’s Law and Say’s Law are equivalent: demand is always sufficient to absorb supply.

But in a model in which agents hold cash, which they use when transacting, they may supply real goods in order to add to their cash holdings. Because individual agents may seek to change their cash holdings, Lange argued that the equivalence between Walras’s Law and Say’s Law in a barter model does not carry over to a model in which agents hold money. Say’s Law cannot hold in such an economy unless excess demands in the markets for real goods sum to zero. But if agents all wish to add to their holdings of cash, their excess demand for cash will be offset by an excess supply of goods, which is precisely what Say’s Law denies.

It is only when an equilibrium price vector is found at which the excess demand in each market is zero that Say’s Law is satisfied. Say’s Law, according to Lange, is a property of a general equilibrium, not a necessary property of rational economic conduct, as Say and his contemporaries and followers had argued. When our model is extended from a barter to a monetary setting, Say’s Law must be restated in the generalized form of Walras’s Law. But, unlike Say’s Law, Walras’s Law does not exclude the possibility of an aggregate excess supply of all goods. Aggregate demand can be deficient, and it can result in involuntary unemployment.

At bottom, this critique of Say’s Law depends on the assumption that the quantity of money is exogenously fixed, so that individuals can increase or decrease their holdings of money only by spending either less or more than their incomes. However, as noted above, if there is a market mechanism that allows an increased demand for cash balances to elicit an increased quantity of cash balances, so that the public need not reduce expenditures to finance additions to their holdings of cash, Lange’s critique may not invalidate Say’s Law.

A competitive monetary system based on convertibility into gold or some other asset[2] has precisely this property. In particular, with money privately supplied by a set of traders (let’s call them banks), money is created when a bank accepts a money-backing asset (IOU) supplied by a customer in exchange for issuing its liability (a banknote or a deposit), which is widely acceptable as a medium of exchange. As first pointed out by Thompson (1974), Lange’s analytical oversight was to assume that in a Walrasian model with n real goods and money, there are only (n+1) goods or assets. In fact, there are really (n+2) goods or assets; there are n real goods and two monetary assets (i.e., the money issued by the bank and the money-backing asset accepted by the bank in exchange for the money that it issues). Thus, an excess demand for money need not, as Lange assumed, be associated with, or offset by, an excess supply of real commodities; it may be offset by a supply of money-backing assets supplied by those seeking to increase their cash holdings.

Properly specifying the monetary model relevant to macroeconomic analysis eliminates a misconception that afflicted monetary and macroeconomic theory for a very long time, and provides a limited rehabilitation of Say’s Law. But that rehabilitation doesn’t mean that all would be well if we got rid of central banks, abandoned all countercyclical policies and let private banks operate without restrictions. None of those difficult and complicated questions can be answered by invoking or rejecting Say’s Law.

[1] Excess supplies are recorded as negative excess demands.

[2] The classical economists generally regarded gold or silver as the appropriate underlying asset into which privately issued monies would be convertible, but the possibility of a fiat standard was not rejected on analytical principle.

Bitcoin Doesn’t Rule

Look out, bitcoin’s back. After the first bitcoin bubble burst almost exactly three years ago on December 15, 2017, when bitcoin hit its previous all-time high of over $19,600, bitcoin lost more than 80% its value, falling to less than $3200 on December 14, 2018. It gradually recovered, more than doubling its value (to over $7000) by December 13, 2019 and reached a new all-time high today at $20,872.

Bitcoin’s remarkable recovery is again sparking senseless talk by its more extreme promoters that it  will soon transform the world monetary system leading the collapse of fiat currencies and a flight to bitcoin to escape the hyperinflationary collapse of worthless unbacked fiat currencies. This is nonsense, as I have explained at length in a number of previous posts (e.g., here, here, and here) at even greater length in a forthcoming paper, a draft of which is available here.

In this post, I offer a summary of my argument about why bitcoin, despite its success as a speculative asset, is intrinsically unsuited to be a widely used medium of exchange, let alone a dominant currency. Indeed, success as a speculative asset is precisely what disqualifies it as anything more than a niche medium of exchange.

By a “medium of exchange,” I mean a good or instrument readily accepted in exchange by agents even if they don’t value the non-monetary services provided by that good or instrument in the expectation that other agents will be accepted in exchange at a reasonably predictable value close to its current value. After a good begins to function as a medium of exchange, its value may rise above the value it would have had if it were demanded only for the real services it provides, but arbitrage ensures that the value of a medium of exchange will be equalized in all uses, monetary or and real, so the expected value of a medium of exchange will not vary as a result of the intended use for which it is acquired.

By a “pure medium of exchange” I mean a good or instrument providing no non-monetary services and therefore demanded solely on account of its expected future resale value. The analysis of the value of a pure medium of exchange seems to hinge on three different factors affecting its expected future resale value: (1) backward induction, (2) tax liability, and (3) network effects.

Backward induction refers to the influence of a predictable future state on the present. If agents all foresee a future event that influence of that future event, however distant, must rebound backward towards the present. Thus, the certainty that a pure medium of exchange must lose its value once no one is willing to accept in exchange, its predictable loss of value must deprive it of value immediately, because no one will want to be the last person to accept it.

Backward induction is used routinely in formal exchange and game-theoretic models, but its relevance is often disputed when the certainty and the timing of the last period is unclear. In that environment, people seem more willing to assume that there will always be someone else around who will accept the medium of exchange at a positive value. Even so, backward induction at least suggests that the value of any pure medium of exchange is sensitive to expectational shocks, making a pure medium of exchange a potentially unstable pillar of an economic system.

Tax liability refers to the acceptability of a medium of exchange to discharge tax liabilities to the government. Acceptability to discharge a stream of future tax liabilities imposed by the government can maintain a positive value for a pure medium of exchange even if the backward induction argument is otherwise compelling. However, acceptability to discharge tax payments is routinely extended to government issued, or government sanctioned, fiat currencies but never to privately issued cryptocurrencies.

Network effects result from the property of some goods that their usefulness is contingent on and enhanced by the extent to which the good is used by other people. Think of the difference between a refrigerator and a telephone. Clearly, the desirability of and the demand for a medium of exchange increases with the number of other people using that medium of exchange. Additionally, as more people use any given medium of exchange, the cost to any individual user of switching to another medium of exchange than that used by the network of users of which that user is a part increases.

Network effects are important for many reasons, but for purposes of this discussion, network effects are particularly important because they provide another explanation than the tax-liability argument for why backward induction need not drive the value of a pure medium of exchange to zero. If a new medium of exchange provides some exchange service superior to, or not provided at all by, the service provided by the existing, more widely used, medium of exchange, and it attracts even a small network of users that take advantage of that service, a demand for the continued use of the alternative medium of exchange may be created. If the switching cost associated with adopting another medium of exchange and foregoing the unique service provided by the new medium of exchange is sufficiently high, current users of the new medium of exchange may persist in use of the new medium of exchange despite its predictable future loss of value.

Thus, even though it provides no current real services, and even though its current value is drawn entirely from its expected future value, bitcoin may have succeeded in providing a niche medium of exchange service for transactions in which one or both parties have a strong desire or need for anonymity. The underlying blockchain technology is thought to provide such assurance to those transacting with bitcoins. At least for now, this niche service seems to serve a small network of users better than any available alternative, and the current costs of switching to an alternative medium of exchange providing similar assurance of anonymity may be prohibitive. That network effect, combined with high switching cost, may be sufficient to prevent backward induction from driving the value of bitcoins down to zero, as might otherwise seem likely.

While this argument suggests that bitcoin will not soon disappear, the hopes of its promoters and supporters for continued appreciation to result in the collapse of fiat currencies and their replacement by bitcoin and possibly other cryptocurrencies seem destined for disappointment. Expectations of rapid appreciation do not attract new uses into the network of users of a medium of exchange. On the contrary, as implicitly recognized by the familiar proposition (now known as Gresham’s Law) that bad money drives out the good, the expectation of rapid appreciation deters, rather than attracts, traders from using the appreciating (good) money in exchange, encouraging instead the use of the alternative (bad) money whose value is expected to be comparatively stable. Centuries, if not millenia, of monetary experience have demonstrated the wisdom of this proposition over and over again.

The very success of bitcoin as a speculative asset turns out to be the kiss of death for its chances of ever displacing the dollar as the dominant currency in the world.

My Paper “Fiat Money, Cryptocurrencies and the Pure Theory of Money” is now available on SSRN

I have just posted a draft of a paper that will appear in a forthcoming volume, Edward Elgar Handbook of Blockchain and Cryptocurrencies. The paper draws on a number of my earlier posts on fiat currencies, bitcoins and cryptocurrencies, such as this, this, this and this.

Here is the abstract of my paper.

This paper attempts to account for the rising value of cryptocurrencies using basic concepts of monetary theory. A positive value of fiat money is itself problematic inasmuch as that value apparently depends entirely on its expected resale value. A current value entirely dependent on expected future resale value seems inconsistent with backward induction. While fiat money can avoid the backward-induction problem if it is made acceptable in payment of taxes, acceptability for tax payments is unavailable to cryptocurrencies. Is the rising value of bitcoin and other cryptocurrencies a bubble? The paper argues that network effects may be an alternative mechanism for avoiding the logic of backward induction. Because users of any good subject to substantial network effects incur costs by switching to an incompatible alternative to the good currently used, users of a bitcoin for certain transactions may be locked into continued use of bitcoin despite an expectation that its future value will eventually go to zero. Thus, even if bitcoin and other cryptocurrencies are bubble phenomena, network effects may lock existing users of bitcoin into continued use of bitcoin for those transactions for which bitcoins provide superior transactional services to those provided by conventional currencies. Nevertheless, the prospects for bitcoin’s expansion beyond its current niche uses are dim, because its architecture implies that a significant expansion in the demand for its transactional services would lead to rapid appreciation that is incompatible with service as a medium of exchange.

My Paper (with Sean Sullivan) on Defining Relevant Antitrust Markets Now Available on SSRN

UPDATE: The paper was selected by Concurrences as the best academic antitrust economics paper of 2020, and is forthcoming in the Antitrust Law Journal volume 83, number 2.

Antitrust aficionados may want to have a look at this new paper (“The Logic of Market Definition”) that I have co-authored with Sean Sullivan of the University of Iowa School of Law about defining relevant antitrust markets. The paper is now posted on SSRN.

Here is the abstract:

Despite the voluminous commentary that the topic has attracted in recent years, much confusion still surrounds the proper definition of antitrust markets. This paper seeks to clarify market definition, partly by explaining what should not factor into the exercise. Specifically, we identify and describe three common errors in how courts and advocates approach market definition. The first error is what we call the natural market fallacy: the mistake of treating market boundaries as preexisting features of competition, rather than the purely conceptual abstractions of a particular analytical process. The second is the independent market fallacy: the failure to recognize that antitrust markets must always be defined to reflect a theory of harm, and do not exist independent of a theory of harm. The third is the single market fallacy: the tendency of courts and advocates to seek some single, best relevant market, when in reality there will typically be many relevant markets, all of which could be appropriately drawn to aid in competitive effects analysis. In the process of dispelling these common fallacies, this paper offers a clarifying framework for understanding the fundamental logic of market definition.

My Paper Schumpeterian Enigmas Is Now Available on SSRN

I have just posted a paper I started writing in 2007 after reading Thomas McCraw’s excellent biography of Joseph Schumpeter, Prophet of Innovation. The paper, almost entirely written in 2007, lay unfinished until a few months ago, when I finally figured out how to conclude the paper. I greatly benefited from the comments and encouragement of David Laidler, R. G. Lipsey and Geoff Harcourt in its final stages.

The paper can be accessed or downloaded here.

Here is the abstract:

Drawing on McCraw’s (2007) biography, this paper assesses the character of Joseph Schumpeter. After a biographical summary of Schumpeter’s life and career as an economist, the paper considers a thread of deliberate posturing and pretense in Schumpeter’s grandiose ambitions and claims about himself. It also takes account of his ambiguous political and moral stance in both his personal, public and scholarly lives, in particular his tenure as finance minister in the short-lived German Socialist government after World War I and his famous prediction of the ultimate demise of capitalism in his celebrated Capitalism, Socialism and Democracy. Although he emigrated to the US in the 1930s Schumpeter was suspected of harboring pro-German or even pro-Nazi sympathies during World War II, sympathies that are at least partially confirmed by the letters and papers discussed at length by McCraw. Moreover, despite Schumpeter’s support for his student Paul Samuelson, when Samuelson, owing to anti-Semitic prejudice, was rejected for a permanent appointment at Harvard, Samuelson himself judged Schumpeter to have been antisemitic. Nevertheless, despite his character flaws, Schumpeter exhibited a generosity of spirit in his assessments of the work of other economists in his last and greatest work The History of Economic Analysis, a work also exhibiting uncharacteristic self-effacement by its author. That self-effacement may beattributable to Schumpeter’s own tragic and largely unrealized ambition to achieve the technical analytical breakthroughs to which he accorded highest honors in his assessments of the work of other economists, notably, Quesnay, Cournot and Walras.


About Me

David Glasner
Washington, DC

I am an economist in the Washington DC area. My research and writing has been mostly on monetary economics and policy and the history of economics. In my book Free Banking and Monetary Reform, I argued for a non-Monetarist non-Keynesian approach to monetary policy, based on a theory of a competitive supply of money. Over the years, I have become increasingly impressed by the similarities between my approach and that of R. G. Hawtrey and hope to bring Hawtrey's unduly neglected contributions to the attention of a wider audience.

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