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....

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...

We argue that the time-varying regional distribution of housing equity influences the aggregate consequences of monetary policy through its effects on mortgage refinancing. Using detailed loan-level data, we show that regional differences in housing equity affect refinancing and spending...