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Robert W. Clower

American economist (1926-2011)

  • 4 min read
  • 3 chapters

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Through Stock and flow, Economics and Macroeconomics

Major contributions

Clower is credited with having largely created the field of stock-flow analysis in economics.

In seminal papers that advanced strong methodological positions and set an agenda for subsequent research, Clower formalized and reformulated:

  • Keynesian theory as disequilibrium analysis in contrast to standard general equilibrium theory, thereby generalizing (or rejecting) Walras' law and standard price theory. To this end, he proposed the 'dual-decision hypothesis' in which realized transaction quantities affect adjustments in output at other than full-employment equilibrium but not at full-employment equilibrium. This, he argued, was implicit in Keynes's work to explain how full-employment equilibrium is only a special case. Such quantity constraints introduce nonlinearities that complicate dynamic stability of the economic system as to full-employment equilibrium and require a distinction between notional and effective demand.
  • Monetary theory to incorporate explicitly the difference between a money economy and barter economy such that "in sharp contrast with established [microeconomic] theory, money commodities play a peculiar and central role in shaping prevailing forces of excess demand." It is here that his cash-in-advance constraint, now often referred to as the Clower constraint was introduced.

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