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...

Over the past three years, as the euro area has struggled with high levels of sovereign debt, it has been gradually developing into a debt union. However, this is not a sustainable arrangement. This article proposes two alternatives to a debt union: a fiscal union and a monetary union with...