In this paper, we demonstrate that it may be socially optimal for countries to have different currencies, even though they have no possibility of independently controlling their money supplies. We assume that agents have heterogeneous preferences over goods of different national origin, and that...

In this paper, we first introduce investment-specific technology (IST) shocks to an otherwise standard international real business cycle model and show that a thoughtful calibration of them along the lines of Raffo (2009) successfully addresses the "quantity", "international comovement",...

Periods of economic boom with rapid credit and GDP growth can be followed by sudden busts. In the presence of financial markets imperfections, a simple modification of a neoclassical growth model can fully account for this behavior. I study a growth model for a small open economy where...

Emerging market economies typically exhibit a procyclical fiscal policy: public expenditures rise (fall) in economic expansions (recessions), whereas tax rates rise (fall) in bad (good) times. Additionally, the business cycle of these economies is characterized by countercyclical default risk....

We develop a multi-country quantitative model of the global distribution of current account and external balances. Countries accumulate domestic capital and foreign assets to smooth consumption over time against exogenous productivity shocks in the presence of liquidity constraints. In...

This paper analyses a small open economy that wants to borrow from abroad, cannot commit to repay debt but faces costs if it decides to default. The model generates analytical expressions for the impact of shocks on the incentive compatible level of debt. Debt reduction generated by severe...

We study the sovereign default model that has been used to account for the cyclical behavior of interest rates in emerging market economies. This model is often solved using the discrete state space technique with evenly spaced grid points. We show that this method necessitates a large number of...

This paper employs mean-variance spanning tests to examine the diversification potential of multinational firms and foreign market indices from the perspective of investors in the G7 countries over the 1984-95 period. We find evidence that multinational corporations may have provided...

We present a model of long-duration collateralized debt with risk of default. Applied to the housing market, it can match the homeownership rate, the average foreclosure rate, and the lower tail of the distribution of home-equity ratios across homeowners prior to the recent crisis. We stress the...

Should policy makers be permitted to intervene during a financial crisis by bailing out financial institutions and their investors? We study this question in a model that incorporates two competing views about the underlying causes of these crises: self-fulfilling shifts in investors'...