To investigate time heterogeneity in the e¤ects of fiscal policy in the U.S., we use a non-recursive, Blanchard and Perotti-like structural VAR with time-varying parameters, estimated through Bayesian simulation over the 1965:2-2009:2 period. Our evidence suggests that fiscal policy has lost...

This paper develops a new measure of quarterly discretionary tax shocks for Portugal that result from changes in legislation, following the narrative approach. It covers the years from 1996 to 2012 and was based on a comprehensive analysis of tax policy measures taken in the course of this...