In an estimated two-country DSGE model, we find that shocks to the marginal efficiency of investment account for more than half of the forecast variance of cyclical fluctuations in the US trade balance. Both domestic and foreign marginal efficiency shocks have a substantial impact on the...

The present paper uses a two-country stochastic general equilibrium model assuming incomplete financial markets and non-separable consumer preferences to show how optimal fiscal responses to an asymmetric productivity shock can mitigate the worsening of the international consumption risk sharing...

We study cross-country insurance in a currency union with nominal price and wage rigidities. We provide two results that build the case for the creation of a fiscal union within a currency union. First, we show that, if financial markets are incomplete, the value of gaining access to any given...

We study cross-country risk sharing as a second-best problem for members of a currency union using an open economy model with nominal rigidities and provide two key results. First, we show that if financial markets are incomplete, the value of gaining access to any given level of aggregate risk...

The work of Ghironi and Melitz (2005) is at the frontier of international real business cycle (IRBC) models with heterogeneous firms. In their model, the dynamic behaviour of real marginal costs is puzzling: a positive technology shock hitting the home country makes it permanently less...

This note starts from the premise that policy makers invariably make mistakes, both intentional and unintentional. That requires shifting the focus from one-time choice of winners (sectors, industries, firms, and other organizations) to the process of error detection and error correction of the...

We study cross-country risk sharing as a second-best problem for members of a currency union using an open economy model with nominal rigidities and provide two key results. First, we show that if financial markets are incomplete, the value of gaining access to any given level of aggregate risk...