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 …

associated with structural unemployment and low productivity -- due to technological sclerosis' and a scrambling' of productivity … traditional unemployment cost is due to reduced productivity and is determined by the recession's cumulative effect on the economy …'s churn rate. Although a recessionary shock increases the economy's turbulence' at impact, semi-structural VAR evidence from …

Investment is often irreversible, in that installed capital has little or no value unless used in production. In the … presence of ongoing uncertainty, an individual firm's irreversible investment policy optimally alternates short bursts of … positive gross investment to periods of inaction, when the installed capital stock is allowed to depreciate. The behavior of …

In this paper we derive a model of aggregate investment that builds from the lumpy microeconomic behavior of firms …-of-sample criteria, we find that the model performs substantially better than the standard linear models of investment for postwar … sectoral U.S. manufacturing equipment and structures investment data …

In this paper we derive a model of aggregate investment that builds from the lumpy microeconomic behavior of firms … aggregate investment obtained from adding up the actions of firms subject to aggregate and idiosyncratic shocks, is highly non … postwar sectoral U.S. manufacturing equipment and structures investment. For a given sequence of aggregate shocks, the …

following a large real (non-financial) shock; and (ii) demonstrate the effectiveness of Large Scale Asset Purchases (LSAPs) in … addressing these contractions. The key mechanism stems from heterogeneous risk tolerance: as a recessionary shock hits the … Covid-19 shock and the large response by all the major central banks provide a vivid illustration of the environment we seek …

. Domestic assets experience dramatic depreciation and otherwise solvent investment projects and production, especially in the …