This paper quantifies the importance of heterogeneity in regional housing markets for the conduct of monetary policy using a new model called an aggregation VAR (AVAR). The model integrates a national financial market with regional housing markets, imposing all exact aggregation conditions....

We quantify the importance of heterogeneity for monetary policy using a new heterogeneous-agent VAR (HAVAR) model that integrates national monetary/financial markets with regional housing markets via the mortgage rate. Although the HAVAR model has linear regional VARs, its aggregate impulse...