The Long-Run Effects of Monetary Policy

Abstract

Does monetary policy have persistent effects on the productive capacity of the economy?Yes, we find that such effects are economically and statistically significant and last for over a decade based on: (1) identification of exogenous monetary policy fluctuations using the trilemma of international finance; (2) merged data from two new international historical cross-country databases reaching back to the nineteenth century; and (3) econometric methods robust to longhorizon inconsistent estimates.Notably, the capital stock and total factor productivity (TFP) exhibit strong hysteresis, whereas labor does not; and money is non-neutral for a much longer period of time than is customarily assumed.We show that a New Keynesian model with endogenous TFP growth can reconcile these empirical findings.

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