We study the implications of regional heterogeneity within a currency union for monetary policy. We ask, first, does monetary policy mitigate or exacerbate ex-post regional dispersion over the business cycle? And second, does ex-ante regional heterogeneity increase or dampen the aggregate...

Both Japan and parts of the European Monetary Union have experienced boom and bust in stock and real estate markets, which have been followed by a lasting crisis. The paper analyses the role of a high degree of regional heterogeneity for public debt and monetary policy in the context of crisis....