We link detailed data on defense spending, wages, hours, employment, establishments, and GDP across U.S. cities to study the effects of fiscal stimulus. Our small-open-economy empirical setting permits us to estimate key macroeconomic outcomes and elasticities, including the responses of the...

We introduce a solution technique for the study of discrete time stochastic models populated by long-lived agents. We introduce aggregate uncertainty and complete markets into a 'perpetual-youth' model of a kind first studied by Olivier Blanchard and we show that the pure-trade version of the...

We discuss the main fiscal policy issues in the Eurozone. Our goal is pedagogical: we do not make any new proposal, but try to represent fairly the various sides of the debate. We focus on two issues that are at the core of the current debate. The first is that, right from the start, the...

This paper asks whether relations of the IS-LM type can sensibly be used for the aggregate demand portion of a dynamic optimizing general equilibrium model intended for analysis of issues regarding monetary policy and cyclical fluctuations. The main result is that only one change -- the addition...

This paper uses contemporaneous monetary data to carry out econometric tests of the "equilibrium" approach to modeling the relation between monetary disturbances and macroeconomic fluctuations. The theoretical analysis introduces into an equilibrium macroeconomic model the availability of...

This paper presents two macro models in which central bank policy has real effects on the supply side of the economy due to credit rationing. In each model, there are two possible regimes, depending on whether credit is or is not rationed. Starting from an unrationed equilibrium, either a large...

This chapter studies how incomplete information helps accommodate frictions in coordination, leading to novel insights on the joint determination of expectations and macroeconomic outcomes. We review and synthesize recent work on global games, beauty contests, and their applications. We...

We estimate a New-Keynesian macro model accommodating regime-switching behavior in monetary policy and in macro shocks. Key to our estimation strategy is the use of survey-based expectations for inflation and output. We identify accommodating monetary policy before 1980, with activist monetary...

This article surveys the macroeconomic implications of financial frictions. Financial frictions lead to persistence and when combined with illiquidity to non-linear amplification effects. Risk is endogenous and liquidity spirals cause financial instability. Increasing margins further restrict...

This paper considers the implications, for macroeconomic modeling and for monetary policy, of the interrelationships among money, credit and nonfinancial economic activity. Data for the United States since World War II show that the volume of outstanding credit is as closely related to economic...