German Economic Thought and the European Crisis

It is a commonplace among Anglo-Saxon economists that Saxon-Saxon “ordoliberalism” was a post-World War II success only because somebody else–the United States–was both looking after the level of demand in the system as a whole, and also willing to act as an importer of last resort to allow other countries that had insufficient domestic demand to use the United States consumer to rebalance their individual economies at full employment even when domestic demand was grossly insufficient.

And it is a commonplace among Anglo-Saxon economists that the formation of the euro was the German establishment’s most recent move in this game. The point of the euro as a currency union was, to put it in a nutshell, to give Greece the interest rates of Germany and Germany the exchange rate of Greece. With the debt capacity of Germany behind it after it joined the euro, Greek firms and the Greek government would be able to borrow at interest rates previously available only to those in northern Europe, and so Greece would be able to invest, industrialize, develop and grow. But, also, the replacement of the DM by a Greece, Italy, and Spain-including euro would provide Germany with a substantial real devaluation, and allow its manufacturing export powerhouse sector to flourish even more.

It is still unclear to me whether Greece would have needed a bailout in the event that the George W. Bush administration and the Bernanke Federal Reserve had been smart enough to preemptively put Wall Street’s universal banks into receivership at the end of the 2007, and so prevented the collapse of 2008-2009. My back-of-the-envelope calculations suggest that Greece’s private and government debt levels would then have been very sustainable. But maybe not: what the value of the assets underlying those private debts and what the value of the Greek government’s taxing capacity would have been had Europe not fallen into what will soon be called the Greater Depression is not clear to me. But in the world as it is, Greece’s ability to borrow at German interest rates was a trap. Greece has gained nothing out of joining the euro. And it has gotten a Greatest Depression out of it by giving up its ability to adjust via exchange-rate depreciation.

Germany, by contrast, has benefitted enormously from the euro. Just consider what the state of Germany’s export sector would be right now if Germany were not part of the euro, and had the real exchange rate of Switzerland.

And now, as in the 1960s and 1980s, the German ordoliberals attribute all of their prosperity to their virtue–and none of it to the fact that they have a fundamental disequilibrium in the form of an undervalued currency that drives an enormous export surplus.


Kevin Baker: Why German Economic Thought Made the Greek Crisis Inevitable:

Yesterday, after months of negotiations, Greece’s Syriza government relented to the demands of its creditors and offered a set of ‘reforms’ in exchange for continued loans. This reform package, which essentially matches the content of the draft plan Greek voters voted down on Sunday’s referendum, will force the country to slash pensions, make further budget cuts, and adopt a series of regulatory changes designed to make the Greek economy more ‘competitive.’

In the lead up to Sunday’s referendum, many observers hoped that a decisive vote against the proposed measures would force the Troika—Greece’s creditor institutions, the European Commission, European Central Bank, and International Monetary Fund—to compromise their hardline stance in favor of continued austerity. The IMF’s announcement last week that Greece would need an additional €60 billion in debt relief and 20-year grace period on debt repayments seemed to add credence to this optimistic assessment. The US Treasury Secretary Jack Lew, fearing the fallout of a potential Grexit, urged the Eurogroup to come to a ‘pragmatic compromise’ on Greece.

But after Sunday’s decisive no vote, Greece’s creditors, led by Germany Chancellor Angela Merkel, were unflinching. Even Sigmar Gabriel, the chairman of the center-left Social Democratic Party of Germany (SPD), who had previously pushed Merkel to adopt a less hardline approach to Greece, has accused Tsipras of pulling down ‘the last bridges over which Europe and Greece could have moved to a compromise.‘

Despite being a party of the far left, Syriza’s official position—that in a time of recession, governments should engage in countercyclical deficit spending—is a fairly conventional Keynesian view. Indeed, in the wake of the 2008 financial crisis, Keynesian stimulus programs were launched in the United States, under George W. Bush and Barack Obama, the UK under the center-left government of Gordon Brown, in France under the center-right administration of Nicolas Sarkozy, and many other countries. So complete was the return to a Keynesian orthodoxy that the (neoclassical) Nobel Memorial Prize winning-economist Robert Lucas famously uttered in 2009, ‘I guess everyone’s a Keynesian in the foxhole.’

Not the Germans. In late 2008, Peer Steinbrück, an SPD member, and Germany’s then-finance minister, denounced Gordon Brown’s stimulus package, saying ‘the switch from decades of supply-side politics all the way to a crass Keynesianism is breathtaking.’ Early the next year, under the watch of Steinbrück, Germany launched its own €50 billion stimulus package, amidst much ‘wailing and gnashing of teeth’ in the Bundestag.[1] But this brief encounter with Keynesian fiscal policy was an aberration. Throughout the financial crisis and subsequent Euro crisis—and in fact throughout much of it postwar history—Germany has been obsessively focused on fiscal restraint, lest it lead to inflation.

On the surface, it seems puzzling that Germany should be so united behind calls for continued austerity in Greece and against the more moderate Keynesian proposals recommended by France, the United States, and even the IMF. Germany, after all, is a social democracy with a comparatively robust social welfare system, and these are characteristics normally associated with Keynesian macroeconomic policies. But this isn’t the case in Germany. In fact, aside from a brief period in the late 1960s and early 1970s, Keynesian ideas have never had much traction in Germany, even on the political left. The reasons for this are deeply rooted in Germany’s economic history. This history and the ideology it helped to spawn have shaped the European Union’s economic institutions, and continue to guide Germany’s response to the Greek crisis.

The Peculiarities of German Economic History

In June 1990, Hans Tietmeyer, who was the President of the Deutsche Bundesbank during Germany’s adoption of the Euro, spoke to an audience at the IMF about the reasons for the success of German monetary policy and the strength and independence of Germany’s central bank. The reasons, he argued, were partly historical. ‘The experience gained twice with hyperinflation in the first half of this century,’ he claimed, ‘has helped to develop a special sensitivity to inflation and has caused the wider public to believe in the critical importance of monetary stability in Germany.’[2] This peculiar historical experience, Tietmeyer believed, explained the unusually low inflation rates of the Deutschmark in the postwar period. ‘In light of the success of the Bundesbank,’ he argued, ‘it is only natural that the German public will expect any successor, which could take its place at the European level, should be at least as well equipped as the Bundesbank to defend price stability.’[3]

The Maastricht Treaty, which established the European Union and created the common currency, fulfilled these German expectations. The Maastricht convergence criteria, which determined whether or not EU member states would be allowed to join the Euro, focused heavily on controlling inflation and maintaining a low government budget deficit and debt-to-GDP ratio. Further, the European Central Bank (ECB), which was established in 1998 and manages the monetary policy of the Eurozone, has a single mandate: to maintain price stability. The monetary and fiscal assumptions of Germans have served as the guiding norms of the monetary union since the very beginning: acceptance into the Eurozone would depend on fiscal discipline and the ECB, unlike, for example, the US Federal Reserve which (ostensibly) has a dual mandate to fight unemployment and inflation, the ECB would only be concerned with fighting inflation.

But the experience of hyperinflation doesn’t seem sufficient to explain the single-mindedness with which Germany has approached the Euro crisis. After all, as many have noted, Hungary and Austria also had their own domestic experience with hyperinflation in the interwar period, and Greece’s hyperinflation of 1943-1944 was much more recent than Germany’s, but did not leave the same imprint in national policy. And this historical experience definitely doesn’t explain the severe and often punitive conditions and interest rates on loans to Greece that Germany has insisted on. To understand this, we have to look at the immediate postwar period.

Crowding Out Keynes

After the Second World War and the Great Depression, laissez-faire economics and the notion of an efficient, self-regulating market were on the ropes. In the United States and much of Europe public intellectuals and scholars declared unregulated capitalism obsolete. Some argued that market principles had been useful in the nineteenth century, but that large, complicated twentieth century societies required economic management and planning.[4] Fearful libertarian commentators like Friedrich Hayek, who had spent much of the twenties and thirties suggesting that economic planning was impossible, argued that attempts to manage the economy represented a slippery slope to tyranny and ‘serfdom.’ But, until the 1970s, these perspectives had only limited influence in the English-speaking world. Demand-side, managerial policies seemed triumphant. In the United States, the UK, and much of Western Europe, Keynesian macroeconomic policy held sway, and, through the Bretton Woods institutions, set the guiding norms and assumptions for the international economic order.

In Germany, though, Keynesianism never really took hold. During the years of the so-called Wirtschaftswunder, or ‘economic miracle’ of the postwar years, West Germany only occasionally employed Keynesian policies. Indeed, the only real period of Keynesian influence in the economy was during the Grand Coalition government (1966-1969) and during the early years of Willy Brandt’s government (1969-1974). According to the political scientist Christopher S. Allen, ‘Keynesianism in Germany was effectively preempted by another set of policies, oriented toward the supply side and the social market economy, that was progressively reinforced—both institutionally and ideologically—over succeeding stages in the postwar period.’[5]

This other policy framework—the so-called ‘ordoliberal’ or Freiburg school of economics—took a different lesson from the history of twentieth-century capitalism. The theory was developed by postwar West German economists like Walter Eucken, Franz Böhm, Leonhard Miksch, and Hans Großmann-Doerth as a response to the unregulated markets of the early twentieth century and to the interventionism of the Nazi regime.[6] Like their cousins in the libertarian Austrian school of economics, early ordoliberals feared economic planning and most kinds of government intervention in the economy, which they linked to the tyranny of Nazi economic planning as well as the centralized planning of the allied occupational authorities. But they also took from the interwar Weimar-era an abiding fear of hyperinflation, a concern about the dislocative effects of proletarianization, and a fear of haphazard economic experimentation.

Combined, all of this created a climate in Germany, which was receptive to a strong state and a comparatively extensive system of social provision, paired with extreme skepticism toward any macroeconomic policy, which could potentially be seen as inflationary.

The German Ideology

So what is ordoliberalism? In his book Austerity, the History of a Dangerous Idea, Mark Blyth refers to ordoliberalism as the German twin of neoliberalism.[7] This is true, but the two are fraternal, not identical twins, as they differ in fundamental ways. Unlike for classical liberals in the Anglo-Saxon tradition, for ordoliberals the state is not an impediment to the efficient functioning of markets; for them strong government regulation is a necessary prerequisite for competitive market activity. And unlike in the Austrian or Chicago variants of neoliberal thinking, a strong state is seen as necessary to produce the moral, legal, and social frameworks (the Ordnung) essential for the functioning of markets.

These state-initiated rules were intended to approximate as closely as possible the functioning of a perfectly competitive market. Consequently, ordoliberals place an outsized emphasis on preventing the establishment of cartels and monopolies. By preventing the formation of powerful economic agents which can influence the prices of goods and services, the state can create a situation approximating a state of perfect competition, which will drive economic development without government stimulus or non-regulatory intervention. By controlling the size and power of economic agents, and by encouraging the formation of a strong state, ordoliberals hoped to prevent a situation of regulatory capture, thus protecting the market from subversion by powerful economic actors.

Perhaps unsurprisingly for a philosophical tradition from Germany, a famously rule-obsessed country, the need for a robust system of rules runs throughout the ordoliberal project. For them, economic rules are seen as constitutional, as an inviolable part of the fabric of society. For people in the ordoliberal tradition, as the legal scholar David Gerber put it, any action ‘which does not conform to constitutional economic principles should be overturned by the courts…just as if it had violated the political constitution.’[8] In effect, ordoliberalism ‘constitutionalizes’ the economy and embeds it in a broader normative framework.  Consequently, when the former Italian Prime Minister Mario Monti famously said that for Germans ‘economics is a branch of moral philosophy,’ he was on to something. Liberal economic thought in the British tradition often frames the economy as something autonomous from moral and social life. Ordoliberals see economics, law, and social norms as fundamentally linked.

In a sense, they reflect a Polanyian urge to embed the market into society, to adapt it to suit the moral beliefs of a people. This desire for morally embedded market explains their acceptance of the ‘social’ component of Germany’s social market. But on the other hand, ordoliberals seek to adapt social norms and institutions to suit the needs of a competitive market. For ordoliberals, this is a product of human design, as the early ordoliberal Walter Eucken notes:

This problem will not solve itself simply by our letting economic systems grow up spontaneously. The history of the last century has shown this plainly enough. The economic system has to be consciously shaped. The detailed problems of economic policy, trade policy, credit, monopoly, or tax policy, or of company or bankruptcy law, are part of the great problem of how the whole economy, national and international, and its rules, are to be shaped.[9]

But beyond the mere construction of rules and institutions, ordoliberalism also calls for a reengineering of the social framework in which markets are embedded.  This requires, as Gerber puts it in his sympathetic account, ‘a broadening and deepening of economic knowledge throughout society.’[10]  For thinkers in this tradition, the social logic of ordoliberalism needs to be broadly defused and continuously maintained by an uncompromising enforcement of economic rules. This means that the state needs to protect against the subversion of the economic constitution by powerful firms, but also against democratic demands.

Discipline and Punish

This mentality goes some way towards explaining the German reaction to the Euro crisis and the demands it has forced upon Greece. Ordoliberal ideas undergird the competitive ‘reforms’ that Greece will have to undergo as well as the continued budget cuts. It also explains the punitive terms Germans have attached to Greek loans and the uncompromising stance with which they’ve approached negotiations. By violating the rules of the ‘economic constitution,’ the Greeks risk not only generating ‘moral hazard,’ but they, in German eyes, also challenge the logic on which the common currency rests. If, as an ordoliberal sees it, rules are the foundation on which an economy rests, any failure to enforce the rules puts the whole system into a state of jeopardy. In a market based on ordoliberal principles, Greece has been forced to choose one of two unappealing options: an ordoliberal diet of austerity, budget cuts, and continued economic hardship or Grexit.

Kevin T. Baker is a Ph.D. candidate in History and Science Studies at Northwestern University. His research focuses on the influence computer science and systems thinking has had on economic and ecological thought. He has written about East German attempts to reform their economy along cybernetic principles and on an American project to create a simulation model of Nigeria’s economy in the 1970s. His dissertation looks at the global simulation modeling and the historical legacy of the Club of Rome’s Limits to Growth report.


Notes

[1] Silvia, Stephen J. ‘Why do German and US Reactions to the Financial Crisis differ?’ German Politics and Society 29, no. 4 (2011): 68-77. p. 72
[2] Tietmeyer, Hans. ‘The role of an independent central bank in Europe.’ The Evolving Role of Central Banks, IMF, Washington (1991): 176-89. p. 182
[3] Tietmeyer, 183
[4] Immerwahr, Daniel. ‘Polanyi in the United States: Peter Drucker, Karl Polanyi, and the Midcentury Critique of Economic Society.’ Journal of the History of Ideas 70, no. 3 (2009): 445-466.
[5] Allen, Christopher S. ‘The underdevelopment of Keynesianism in the Federal Republic of Germany.’ The Political Power of Economic Ideas: Keynesianism Across Nations (1989): 263-290. p.264
[6] Dullien, Sebastian, and Ulrike Guérot. ‘The long shadow of ordoliberalism: Germany’s approach to the euro crisis.’ European Council on Foreign Relations Policy Brief 22 (2012).
[7] Blyth, Mark. Austerity: the History of a Dangerous Idea. Oxford University Press, 2013.
[8] Gerber, David J. 1994. ‘Constitutionalizing the Economy: German Neo-liberalism, Competition Law and the ‘New’ Europe’. American Journal of Comparative Law. 42 (1): 25-84. p. 76-77
[9] Eucken, Walter. The Foundations of Economics: History and Theory in the Analysis of Economic Reality. Springer Science & Business Media, 2012. p.314
[10] Gerber, 76″

Must-Read: Ben Bernanke: Greece and Europe: Is Europe holding up its end of the bargain? No.

Must-Read: Ben Bernanke: Greece and Europe: Is Europe holding up its end of the bargain?: “Is the euro zone’s leadership delivering the broad-based economic recovery that is needed to give stressed countries like Greece…

…a reasonable chance to meet their growth, employment, and fiscal objectives?…. Unfortunately, the answers… are… obvious…. The failure of European economic policy has two, closely related, aspects: (1) the weak performance of the euro zone as a whole; and (2) the highly asymmetric outcomes among countries within the euro zone…. In late 2009 and early 2010 unemployment rates in Europe and the United States were roughly equal, at about 10 percent of the labor force. Today the unemployment rate in the United States is 5.3 percent, while the unemployment rate in the euro zone is more than 11 percent. Not incidentally, a very large share of euro area unemployment consists of younger workers; the inability of these workers to gain skills and work experience will adversely affect Europe’s longer-term growth potential….

The promise of the euro was both to increase prosperity and to foster closer European integration. But current economic conditions are hardly building public confidence in European economic policymakers or providing an environment conducive to fiscal stabilization and economic reform; and European solidarity will not flower under a system which produces such disparate outcomes among countries….

Nobody is suggesting that the well-known efficiency and quality of German production are anything other than good things, or that German firms should not strive to compete in export markets. What is a problem, however, is that Germany has effectively chosen to rely on foreign rather than domestic demand to ensure full employment at home, as shown in its extraordinarily large and persistent trade surplus… [which] puts all the burden of adjustment on countries with trade deficits, who must undergo painful deflation of wages and other costs to become more competitive….

I’ll end with two concrete proposals. First, negotiations over Greece’s evidently unsustainable debt burden should be based on explicit assumptions about European growth. If European growth turns out to be weaker than projected… Greece should be allowed greater leeway…. Second, it’s time for the leaders of the euro zone to address the problem of large and sustained trade imbalances (either surpluses or deficits), which, in a fixed-exchange-rate system like the euro zone, impose significant costs and risks…

Must-Read: Simon Wren-Lewis: The Non-Independent ECB

Must-Read: Simon Wren-Lewis: The Non-Independent ECB: “The real explanation for the ECB’s actions is much simpler…

…Limiting funding on 28th June was the Greek government’s punishment for failing to agree to the Troika’s terms and calling a referendum the day before. The ECB was not, and never has been, a neutral actor just following the rules of a good central bank. It has always been part of the Troika, and right now it is the Troika’s enforcer…. This is not the first time the ECB has chosen to bow to political pressure…. Just as I do not think it was inevitable that the Eurozone committed itself to austerity, I also think it was possible that the ECB could have been a more independent central bank. The really interesting question is why it has turned out not to be such a bank.

Must-Read: Stefan Laseen et al.: Systemic Risk: A New Trade-off for Monetary Policy?

Must-Read: Stefan Laseen et al.: Systemic Risk: A New Trade-off for Monetary Policy?: “We introduce time-varying systemic risk in an otherwise standard New-Keynesian model…

…to study whether a simple leaning-against-the-wind policy can reduce systemic risk and improve welfare. We find that an unexpected increase in policy rates reduces output, inflation, and asset prices without fundamentally mitigating financial risks. We also find that while a systematic monetary policy reaction can improve welfare, it is too simplistic: (1) it is highly sensitive to parameters of the model and (2) is detrimental in the presence of falling asset prices. Macroprudential policy, similar to a countercyclical capital requirement, is more robust and leads to higher welfare gains.

Must-Read: Amir Sufi: Out of Many, One?: Household Debt, Redistribution and Monetary Policy during the Economic Slump

Must-Read: Amir Sufi: Out of Many, One?: Household Debt, Redistribution and Monetary Policy during the Economic Slump: “Monetary policy has been especially weak in advanced economies over the past 7 years…

…because the redistribution channels of monetary policy have been severely hampered. Standard representative agent-based macroeconomic models miss this key insight, and have therefore been an insufficient guide to policy decisions. A framework that recognizes the importance of redistribution channels of monetary policy can guide central bankers on what policies are most likely to be effective. The same policy may have different effects on the real economy depending on the distribution of debt capacity across individuals.

Noted for Your Lunchtime Procrastination for July 17, 2015

Must-Read: Joe Romm:

Hottest June Puts 2015 On Track For Hottest Year On Record By Far ThinkProgress

Must-Read: Joe Romm: Hottest June Puts 2015 on Track for Hottest Year on Record by Far: “It’s now all but certain 2015 will be the hottest year on record…

…probably by a wide margin–as what increasingly appears to be one of the strongest El Niños in 50 years boosts the underlying global warming trend.
Climate expert Dr. John Abraham amended this NASA chart to show how the first six months of 2015 compares to the annual temperatures of previous years….

There is a greater than 85 percent chance that the current El Niño lasts through May. As AccuWeather’s Anderson explains, ‘El Niño typically reaches its peak during the December through February period.’ If this pattern plays out, then 2016 would likely top whatever temperature record 2015 sets…

Weekend reading

This is a weekly post we publish on Fridays with links to articles we think anyone interested in equitable growth should be reading. We won’t be the first to share these articles, but we hope by taking a look back at the whole week, we can put them in context.

Links

Paul Krugman on what the new research on labor markets tell us about raising wages. [nyt]

Matt Bruenig digs into the data and shows U.S. workers put in more hours than we’d expect given productivity levels. [demos]

Timothy Taylor discusses new research about productivity and the seeming problem of diffusing new ideas to other firms. [conversable economist]

Dietz Vollrath tries to understand the diffusion models of productivity growth. [growth economics]

David Keohane on brokerage booms, hidden debt, and Chinese GDP data. [ft alphaville]

Friday figure

lfpr-testimony-03

 

Figure from “The Declining Labor Force Participation Rate: Causes, Consequences, and the Path Forward” by Elisabeth Jacobs

Must-Read: Karl Whelan: Alice In Schäuble-Land: Where Rules Mean What Wolfgang Says They Mean

Must-Read: Karl Whelan: Alice In Schäuble-Land: Where Rules Mean What Wolfgang Says They Mean: “Neither [John] Bruton nor [Simon] Nixon explains which eurozone rules Greece has been breaking that necessitated threats of expulsion…

…People can point to the under-statements of Greece’s debt that pre-dated the current crisis. But these events are long in the past and did nothing to contribute to the escalation of the current crisis this year. You can also point to the Stability and Growth Pact rules but keep in mind that these are being broken by the majority of euro area members. Nixon explains the real rule that Tsipras has broken:

Like Italy’s Matteo Renzi, France’s François Hollande and others before him, Mr. Tsipras has had to learn the rules of the European game: that you don’t gain leverage over other leaders simply by winning elections–they have all done that–but by winning their respect by showing you have the capacity to make tough decisions at home.

This gets it about right. The rules that Tsipras has broken are unwritten rules that reflect the power the euro area’s creditor states have to ruin any member states that don’t do as they are ordered. Accepting such a large loan from these states in 2010 was probably the biggest mistake in Greece’s economic history. Indeed, I would bet most Greeks wished now there really had been a no-bailout rule.

Stability of General Equilibrium and Monetary Policy: Baby Steps

The very sharp Nick Rowe has a useful piece today giving the baby-step intuition behind Schmidt and Woodford’s argument that, no, expected and actual inflation do not as a rule decline one-for-one when a central bank lowers nominal interest rates:

Nick Rowe: Understanding Schmidt and Woodford on Neo-Fisherianism: “Suppose you are really bad at algebra… can’t solve…

…X = 0.5X. So you make a tentative first guess at the answer, say X=1, plug your guess into the right hand side, get X=0.5, which is your second guess, which you plug into the right hand side again, to get X=0.25, which is your third guess, and so on. Eventually your guesses converge to X=0… tatonnement (groping) towards the answer, just like the Walrasian auctioneer who solves the supply and demand equations in micro by raising prices if there’s excess demand, and cutting prices if there’s excess supply. But… if the equation is X = 2X… your guesses will diverge further and further away from the right answer….

Now let’s look at the Neo-Fisherian question. Let P be actual inflation, let Pe be expected inflation, Y be the output gap, i the nominal interest rate set by the central bank, and r the natural rate of interest.: P=Pe+aY… a>0 (Phillips Curve). Y=-c(i-Pe-r)… c>0(IS Curve)…. P=(1+ac)Pe-ac(i-r). If the central bank holds i fixed… P=bPe+stuff… b>1. You can see the problem. If people try to solve for the rational expectations equilibrium using the tatonnement process, it won’t converge…. The rational expectations equilibrium does exist, and is unique, but there is almost zero chance the agents in the model will solve for it by tatonnement…. But if, by sheer fluke, they did guess lucky first time, the solution is: P=Pe=i-r. Yep, it’s the Neo-Fisherian result…. If we want to make 1>b, so the tatonnement does converge, the central bank needs to set the nominal interest rate as a function of actual (or expected) inflation. And it needs to ensure that the nominal interest rate increases more than one-for-one with actual (or expected) inflation. That’s the Howitt/Taylor principle….

We have to interpret this model as saying that the rational expectations equilibrium is implausible if the central bank pegs the nominal interest rate…. Most people are not very good at algebra, the real world is a lot more complicated than any macro model, and people are all different. It’s already stretching it to assume that people can solve the model by tatonnement in their heads, infinitely quickly, provided 1>b. Most of us mortals have to watch what happens, and revise our expectations in the light of experience…

Nick is right: a real model working in real time with real agents and real expectations is greatly, greatly superior either to a model that assumes a rational expectations equilibrium without inquiring into its stability, and greatly superior to a model that looks for a stable rational expectations under reasonable assumptions about expectation-revision tatonnement. But if you do not get there under reasonable assumptions about expectation-revision tatonnement, you will not get there under a a real model working in real time with real agents and real expectations either.

One of my interlocutors says that I should look at the so-called “neo-Fisherian” claim (which Irving Fisher would laugh it as revealing a truly awesome degree of stupidity) as performing not an economic knowledge-advancing but rather a community-sociological function. It allows most of the under briefed economists who didn’t do their homework to understand the situation in 2008-9 to climb down from the position that their nuttier members like likes of Clifford Asness, Niall Ferguson, and Douglas Holtz-Eakin are still clinging to–that the burst of inflation is coming any day now. And it allows them to do so without admitting that Paul Krugman, Mike Woodford, Gauti Eggertsson, and the rest of the dirty f—ing hippie new Keynesians were right about the state of the economy in 2008-9. And that is why they are so averse to requiring sensible stability-based selection rules for classifying model equilibria.

He may be right.

Alternatively, they may just still not have done their homework.