Alan is interested in the economic and policy implications of international financial markets. He has worked extensively on models of exchange-rate determination and exchange rate crises. An important theme in this research is the analysis of the macroeconomic and welfare implications of different exchange rate and monetary policy regimes. His most recent work focuses on the cross-country economic linkages created by increased financial market integration. In collaboration with co-authors, Alan has developed efficient numerical techniques for analysing international asset trade and portfolio allocation in multi-country general equilibrium models. This work sheds light on the role of international financial flows in transmitting economic shocks between countries.