This article reviews recent research findings on the effects of fiscal multipliers in normal times, during booms/busts, and in the presence of the zero lower bound. Studies on the effects of fiscal policy in open economy settings as well as contributions on the fiscal-monetary policy mix are...

We use a dynamic factor model to provide a semi-structural representation for 101 quarterly US macroeconomic series. We find that (i) the US economy is well described by a number of structural shocks between two and five. Focusing on the four-shock specification, we identify, using sign...

This paper reconsiders the degree to which macroeconomic stabilization is possible when the zero lower bound is a relevant constraint on the effectiveness of conventional monetary policy, under an assumption of bounded rationality. In particular, we reconsider the potential role of...

Policy reforms aimed at boosting long-run growth often have side effects – positive or negative – on an economy’s vulnerability to shocks and their propagation. Macroeconomic shocks as severe and protracted as those since 2007 warrant a reconsideration of the role growth-promoting policies...

The paper revisits the empirical link between fiscal policy and macroeconomic stability. Our basic presumption is that by definition, the operation of automatic stabilizers should always and everywhere contribute to greater macroeconomic stability (output and consumption). However, two stylized...

This chapter reviews and synthesizes our current understanding of the shocks that drive economic fluctuations. The chapter begins with an illustration of the problem of identifying macroeconomic shocks, followed by an overview of the many recent innovations for identifying shocks. It then...