We analyze the optimal Taylor rule in a standard New Keynesian model. If the central bank can observe the output gap and the inflation rate without error, then it is typically optimal to respond infinitely strongly to observed deviations from the central bank's targets. If it observes inflation...

We provide evidence that industries' supply curves are convex. To guide our empirical analysis, we develop a putty-clay model in which capacity constraints at the plant level generate convex supply curves at the industry level. The model's key insight is that an industry's capacity utilization...

We provide new facts about the role of multinationals in the decline in U.S. manufacturing employment between 1993-2011, using a novel microdata panel with firm-level ownership and trade information. Multinational-owned establishments displayed lower employment growth than a narrow control group...

We propose a novel approach to estimate the trade elasticity at various horizons. When countries change Most Favored Nation (MFN) tariffs, partners that trade on MFN terms experience plausibly exogenous tariff changes. The differential effects on imports from these countries relative to a...