The Changing Nature of Technology Shocks

The Changing Nature of Technology Shocks

The Changing Nature of Technology Shocks

We document changes to the pattern of technology shocks and their propagation in post-war U.S. data. Using an agnostic identification procedure, we show that the dominant shock driving total factor productivity (TFP) is akin to a diffusion or news shock and that shock transmission has changed over time. Specifically, the behavior of hours worked is notably different before and after the 1980s.

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