This chapter surveys the recent literature on the theory of macroeconomic policy. We study the effect of various incentive constraints on the policy making process, such as lack of credibility, political opportunism, political ideology, and divided government. The survey is organized in three...

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...

Independence is the hallmark of modern central banks, but independence is a mutable and fragile concept, because the governments to whom central banks are ultimately responsible can have objectives that take precedence over price stability. This paper traces the Federal Reserve's emergence as a...

This paper investigates the transmission channel of macroprudential instruments in a closed economy DSGE model with a rich set of financial frictions. Banks' decisions on risky retail loan concessions are based on borrowers' capacity to settle their debt with labor income. We also introduce...

This paper reviews three recent books. Two books, one by Carl Walsh and one by Michael Woodford, focus on the development of monetary theory. In contrast, the third book is a collection of papers in an NBER volume on inflation targeting. This volume outlines some of the issues that arise when...

We provide an introduction to optimal fiscal and monetary policy using the primal approach to optimal taxation. We use this approach to address how fiscal and monetary policy should be set over the long run and over the business cycle. We find four substantive lessons for policymaking: Capital...