-2000 sample, the initial response of investment to a productivity shock with responses in the top quartile is 60% higher than the … shock. Conversely, a slowdown after a boom can lead to a long lasting investment slump, which is unresponsive to policy … smoothing in the investment response to aggregate shocks. The remaining 40% is explained by general equilibrium forces. The …

The sensitivity of U.S. aggregate investment to shocks is procyclical: the initial response increases by approximately … counterexample to the claim that microeconomic investment lumpiness is inconsequential for macroeconomic analysis …