We study the effects of aggregate and idiosyncratic uncertainty on the entry of firms, total investment, and prices in … a competitive industry with irreversible investment. We first use standard dynamic programming methods to determine …

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 …

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 …

The 90s have witnessed a revival in economists' interest and hope of explaining" aggregate and microeconomic investment … of the investment problem also has been significant. " The concept of sunk costs is at the center of modern theories. The … implications of these costs for" investment go well beyond the neoclassical response to the irreversible-technological friction …

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 …

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: (i) provide a model of the endogenous risk intolerance and severe aggregate demand contractions … addressing these contractions. The key mechanism stems from heterogeneous risk tolerance: as a recessionary shock hits the … economy and brings down asset prices, risk-tolerant agents' wealth share declines and their leverage rises endogenously. This …

We provide a continuous-time “risk-centric” representation of the New Keynesian model, which we use to analyze the …

assumptions: Economic risk is high relative to political risk, markets are sufficiently incomplete, and there exists a rent …

explicitly absorb a larger share of the systemic risk. The options for doing this range from surplus countries rebalancing their … securitization industry while removing the systemic risk from the banks' balance sheets. Such public-private solutions could be …