We study the sustainability of public debt in a closed production economy where a benevolent government chooses scal policies, including haircuts on its outstanding debt, in a discretionary manner. Government bonds are held by domestic agents to smooth consumption over time and because they...

This paper studies how sovereign risk – both fundamental and self-fulfilling – shapes the cyclical behavior of optimalfiscal policy. We develop a model with endogenous default costs where market sentiment can induce belief-driven debt rollover crises. Optimal taxes and public spending are...

We study the sustainability of public debt in a closed production economy where a benevolent government chooses fiscal policies, including haircuts on its outstanding debt, in a discretionary manner. Government bonds are held by domestic agents to smooth consumption over time and because they...

We study the delegation of climate policy to a supranational environmental authority. We demonstrate that the authority faces a dynamic inconsistency problem that leads to welfare losses. The losses can be kept small if the mandate of the authority penalizes the local cost of emissions heavily,...

We examine the dynamic properties of inflation in a model of optimal discretionary fiscal and monetary policies. The lack of commitment and the presence of nominally risk-free debt provide the government with an incentive to implement policies which induce positive and persistent inflation...

We study the monetary instrument problem in a model of optimal discretionary fiscal and monetary policy. The policy problem is cast as a dynamic game between the central bank, the fiscal authority, and the private sector. We show that, as long as there is a conflict of interest between the two...