We develop a simple and intuitive approach for analytically deriving unconditionally optimal (UO) policies, a topic of enduring interest in optimal monetary policy analysis. The approach can be employed to both general linear-quadratic problems and to the underlying non-linear environments. We...

The Greek economy experienced a boom until 2007, followed by a prolonged depression resulting in a 25 percent shortfall of GDP by 2016. Informed by a detailed analysis of macroeconomic patterns in Greece, we estimate a rich dynamic general equilibrium model to assess quantitatively the sources...

Standard consumption-investment theory predicts counter-cyclical (pro-cyclical) behavior of household (corporate) credit whereby households' consumption smoothing and firms' investment motives are aligned. Counter to the theoretical symbiosis consistent with U.S. data, we demonstrate not only in...

Credit constraints that link a private agent's debt to market-determined prices create a systemic credit externality that drives a wedge between competitive and (constrained) socially optimal equilibria, which induces private agents to "overborrow". We quantify the effects of this externality in...

This paper introduces Heckscher-Ohlin trade features into a two-country DSGE model, and studies how productivity shocks propagate through trade in goods. In comparison with standard models, (i) transitory shocks to productivity have permanent effects on country-level aggregate variables; (ii)...

From 1960-2009, the U.S. current account balance has tended to decline during expansions and improve in recessions. We argue that trend shocks to productivity can help explain the countercyclical U.S. current account. Our framework is a two-country, two-good real business cycle (RBC) model in...

Understanding the joint dynamics of international prices and quantities remains a central issue in international business cycles. International relative prices appreciate when domestic consumption and output increase more than their foreign counterparts. In addition, both trade flows and trade...

I present new evidence that gross foreign assets and liabilities in equity investments, measured at market value, are positively correlated over the business cycle in each of the Group of Seven industrialized countries (G7). The close comovement of assets and liabilities, in turn, reflects...

To what extent is the international business cycle affected by the fact that an essential input (oil) is traded on the world market? We quantify the contribution of oil by setting up a model with separate shocks to efficiencies of capital/labor and oil, as well as global shocks to the oil...

This paper analyzes the implications of remittance fluctuations for various macroeconomic variables and Sudden Stops. The paper employs a quantitative two-sector model of a small open economy with financial frictions calibrated to Mexican and Turkish economies, two major recipients, whose...