In light of persistent in ation dispersion and rising debt levels in the EMU, this paper investigates the welfare implications of budget-neutral scal policies that counteract in ation di erentials. In a two-country DSGE model of a monetary union with traded and non-traded goods a national scal...

How does the need to preserve government debt sustainability affect the optimal monetary and fiscal policy response to a liquidity trap? To provide an answer, we employ a small stochastic New Keynesian model with a zero bound on nominal interest rates and characterize optimal time-consistent...