"This paper provides a simple dynamic optimization model of durable goods inventories. Closed-form solutions are derived in a general equilibrium environment with imperfect information and serially correlated shocks. The model is then applied to scrutinize some popular conjectures regarding the...

"This paper shows that economic fluctuations can be largely demand-driven. In particular, the stylized open-economy business cycle regularities documented by Feldstein and Horioka (1980) and Backus, Kehoe and Kydland (JPE 1992) can be explained by the standard general equilibrium theory if...

"A defining feature of business cycles is the comovement of inputs at the sectoral level with aggregate activity. Standard models cannot account for this phenomenon. This paper develops and estimates a two-sector dynamic general equilibrium model which can account for this key regularity. My...

This paper studies the effects of demand and supply shocks in the global crude oil market on several measures of countries'' external balance, including the oil and non-oil trade balances, the current account, and changes in net foreign assets (NFA) during 1975-2004. We explicitly take a global...

Standard real models predict that a permanent increase in oil prices would result in a current account surplus. This is due to the fact that investment falls while saving remains unchanged. This paper shows that if currency substitution is introduced into the analysis, the same shock could cause...

This paper demonstrates how a full-blown optimizing model of the dynamics of the current account can be reduced to a small-scale collection of reduced-form relations capable of implementing a rich set of macro-economic simulations. Emphasizing the role of shocks to productivity, labor...