We show that a .scal expansion by the core economies of the euro area would have a large and positive impact on periphery GDP assuming that policy rates remain low for a prolonged period. Under our preferred model speci.cation, an expansion of core government spending equal to one percent of...

Recent influential work argue that a gradual increase in the sales tax stimulates economic activity in a liquidity trap by boosting inflation expectations. Higher public infrastructure investment should also be more expansive in a liquidity trap than in normal times by raising the potential...