The financial intermediation sector is important not only for channeling resources from agents in excess of funds to agents in need of funds (lending channel). By issuing liabilities it also creates financial assets held by other sectors of the economy for insurance purpose. When the...

We document the cyclical properties of US firms' financial flows and show that equity payout is procyclical and debt payout is countercyclical. We then develop a model with debt and equity financing to explore how the dynamics of real and financial variables are affected by "financial shocks."...

We study a general equilibrium model in which entrepreneurs finance investment with optimal financial contracts. Because of enforceability problems, contracts are constrained efficient.We show that limited enforceability amplifies the impact of technological innovations on aggregate output. More...

We study how barriers to business start-up affect the investment in knowledge capital when contracts are not enforceable. Barriers to business start-up lower the competition for knowledge capital and, in absence of commitment, reduce the incentive to accumulate knowledge. As a result, countries...

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...

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....

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...

The 2008-2009 crisis was characterized by an unprecedented degree of international synchronization as all major industrialized countries experienced large macroeconomic contractions around the date of Lehman bankruptcy. At the same time countries also experienced large and synchronized...