July 2003

What Happens After A Technology Shock?

Lawrence J. Christiano, Martin Eichenbaum, and Robert Vigfusson

Abstract:

We provide empirical evidence that a positive shock to technology drives up per capita hours worked, consumption, investment, average productivity and output . 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.

Keywords: Productivity, long-run restriction, hours worked, weak instruments

PDF: Full Paper

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Last Update: January 11, 2021