What Happens After a Technology Shock?

Abstract

We provide empirical evidence that a positive shock to technology drives per capita hours worked, consumption, investment, average productivity and output up.This evidence contrasts sharply with the results reported in a large and growing literature that argues, on the basis of aggregate data, that per capita hours worked fall after a positive technology shock.We argue that the difference in results primarily reflects specification error in the way that the literature models the low-frequency component of hours worked.

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