During the last three decades, the stock of government debt has increased in most developed countries. During the same period, we also observe a significant liberalization of international financial markets and an increase in income inequality in several industrialized countries. In this paper...

In this paper we study how credit shocks, that is, shocks affecting the ability to raise external funds for borrowers, affect macroeconomic fluctuations. A positive credit shock leads to a typical macroeconomic boom, with an expansion in consumption, investment, labor, output and productivity....

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...

This paper investigates whether the international globalization of financial markets allows for significant cross-country risk-sharing at the business cycle frequency. We find that cross-country risk-sharing is still limited and this is unlikely to be the result of financial frictions that limit...

Two observations suggest that financial globalization played an important role in the recent financial crisis. First, more than half of the rise in net borrowing of the U.S. nonfinancial sectors since the mid 1980s has been financed by foreign lending. Second, the collapse of the U.S. housing...

We study a labour market equilibrium model in which firms sign optimal long-term contracts with workers. Firms that are financially constrained offer an increasing wage profile: they pay lower wages today in exchange for higher future wages once they become unconstrained. Because constrained...

We study the optimal monetary policy in a two-country open-economy model under two monetary arrangements: (a) multiple currencies controlled by independent policy makers; (b) common currencies with a centralized policy maker.Our findings suggest that: (i) monetary policy competition leads to...