We consider how fear of model misspecification on the part of the planner and/or the households affects welfare gains from optimal macroprudential taxes in an economy with occasionally binding collateral constraints as in Bianchi (2011). On the one hand, there exist welfare gains from...

"We show that computing business cycles in emerging economy models using the discrete state space technique may be misleading. We solve the models of sovereign default presented by Aguiar and Gopinath (2006) using interpolation. We find that the simulated behavior of the spread is quite...

We study the optimal accumulation of international reserves in a quantitative model of sovereign default with long-term debt and a risk-free asset. Keeping higher levels of reserves provides a hedge against rollover risk, but this is costly because using reserves to pay down debt allows the...