How is the price level determined in a monetary union when the common monetary policy pegs the nominal interest rate? How are the price levels in the member countries determined? We extend the fiscal theory of the price level to the case of a heterogenous monetary union. Price level determinacy...

I characterize optimal monetary and fiscal policy in a stochastic New Keynesian model when nominal interest rates may occasionally hit the zero lower bound. The benevolent policymaker controls the short-term nominal interest rate and the level of government spending. Under discretionary policy,...