This article reviews macroeconomic models with heterogeneous households. A key question for the relevance of these models concerns the degree to which markets are complete. This is because the existence of complete markets imposes restrictions on (i) how much heterogeneity matters for aggregate...

The key ideas for adding financial market frictions in general equilibrium models are not new in macroeconomics. However, it is only with the recent crisis that the profession has fully recognized the importance of financial markets for business cycle fluctuations. In this article I review some...

An introduction to the special issue on modern macroeconomic theory.

Recent discussions of exchange rate determination have emphasized the possible role of foreign direct investment in influencing exchange rate behavior. Yet, there are few existing models of multinational enterprises (MNEs) and endogenous exchange rates. This article demonstrates that the entry...

An introduction to the special issue on modern macroeconomic theory.

This article reviews macroeconomic models with heterogeneous households. A key question for the relevance of these models concerns the degree to which markets are complete. This is because the existence of complete markets imposes restrictions on (i) how much heterogeneity matters for aggregate...

The key ideas for adding financial market frictions in general equilibrium models are not new in macroeconomics. However, it is only with the recent crisis that the profession has fully recognized the importance of financial markets for business cycle fluctuations. In this article I review some...

Recent discussions of exchange rate determination have emphasized the possible role of foreign direct investment in influencing exchange rate behavior. Yet, there are few existing models of multinational enterprises (MNEs) and endogenous exchange rates. This article demonstrates that the entry...