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...

This paper analyzes the importance of monetary and fiscal policy shocks in explaining US macroeconomic fluctuations, and establishes new stylized facts. The novelty of our empirical analysis is that we jointly consider both monetary and fiscal policy, whereas the existing literature only focuses...

Building on the automatic fiscal stabilisers literature, this paper assesses how automatic stabilisers have evolved over the past two decades by analysing changes in the personal income tax and social benefit systems. In three-quarters of the 35 OECD countries analysed, indicators of the...

We demonstrate that the cyclical behaviour of markups is related to the cyclical behaviour of government spending. For plausible parameter assumptions, pro-cyclical spending results in less counter-cyclical mark-ups. Evidence for thirteen OECD countries confirms a weak version of this hypothesis

This paper investigates how numerical fiscal rules affect government investment in the EU and disentangles their effect over the business cycle. Public investment seems to be generally susceptible to cutbacks during recessions. Fiscal rules demonstrate heterogeneous effects, depending on their...

Accommodative monetary policy during the financial crisis was instrumental in preventing a deeper recession. Views differ, however, on how long such measures should be kept in place. At the heart of this debate is the notion that a protracted period of policy accommodation could create...

In this paper we perform a meta-analysis of the effects of monetary policies on output and prices. We use a sample of published papers on the effects of monetary policies in different countries. There is a large variation in the estimated effects of monetary policies on output and prices. We...

Fears of deflation and long-term stagnation have become more commonplace since the Great Recession. Yet, within the mainstream, economists are divided into two camps: those who see the benefits of downward wage and price adjustment, as a private sector stabilizer, and those who fear deflationary...

In this paper we perform a meta-analysis of the effects of monetary policies on output and prices. We use a sample of published papers on the effects of monetary policies in different countries. There is a large variation in the estimated effects of monetary policies on output and prices. We...

Prior to 2020, the Great Recession was the most important macroeconomic shock to the United States economy in generations. Millions lost jobs and homes. At its peak, one in ten workers who wanted a job could not find one. On an annual basis, the economy contracted by more than it had since the...