L. Randall Wray | April 15, 2012
(cross posted at EconoMonitor)
Since Paul Krugman kicked-off a heated discussion about Minsky’s views on banks, and because the annual “Minsky Conference” co-sponsored by the Ford Foundation and the Levy Economics Institute occurred this past week, I thought it would be useful to run a couple of posts laying out what Minsky was all about. This first piece will detail his early work on what led up to development of his famous “financial instability hypothesis.”
Minsky’s Early Contributions
In his publications in the 1950s through the mid 1960s, Minsky gradually developed his analysis of the cycles. First, he argued that institutions, and in particular financial institutions, matter. This was a reaction against the growing dominance of a particular version of Keynesian economics best represented in the ISLM model. Although Minsky had studied with Alvin Hansen at Harvard, he preferred the institutional detail of Henry Simons at Chicago. The overly simplistic approach to macroeconomics buried finance behind the LM curve; further, because the ISLM analysis only concerned the unique point of equilibrium, it could say nothing about the dynamics of a real world economy. For these reasons, Minsky was more interested in the multiplier-accelerator model that allowed for the possibility of explosive growth. In some of his earliest work, he added institutional ceilings and floors to produce a variety of possible outcomes, including steady growth, cycles, booms, and long depressions. He ultimately came back to these models in some of his last papers written at the Levy Institute. It is clear, however, that the results of these analyses played a role in his argument that the New Deal and Post War institutional arrangements constrained the inherent instability of modern capitalism, producing the semblance of stability.
At the same time, he examined financial innovation, arguing that normal profit seeking by financial institutions continually subverted attempts by the authorities to constrain money supply growth. This is one of the main reasons why he rejected the LM curve’s presumption of a fixed money supply. Indeed, central bank restraint would induce innovations to ensure that it could never follow a growth rate rule, such as that propagated for decades by Milton Friedman. These innovations would also stretch liquidity in ways that would make the system more vulnerable to disruption. If the central bank intervened as lender of last resort, it would validate the innovation, ensuring it would persist. Minsky’s first important paper in 1957 examined the creation of the fed funds market, showing how it allowed the banking system to economize on reserves in a way that would endogenize the money supply. The first serious test came in 1966 in the muni bond market and the second in 1970 with a run on commercial paper—but each of these was resolved through prompt central bank action. Thus, while the early post-war period was a good example of a “conditionally coherent” financial system, with little private debt and a huge inherited stock of federal debt (from WWII), profit-seeking innovations would gradually render the institutional constraints less binding. Financial crises would become more frequent and more severe, testing the ability of the authorities to prevent “it” from happening again. The apparent stability would promote instability. continue reading…
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