Whereas public student loans are often income contingent, private banks typically offer pure loans, or don't offer loans at all. In order to provide a rationale for these observations, we present a model with perfectly competitive banks and risk averse students who have private information on...

The financial crisis of 2007-08 has underscored the importance of adverse selection in financial markets. This friction has been mostly neglected by macroeconomic models of financial frictions, however, which have focused almost exclusively on the effects of limited pledgeability. In this paper,...

Evidence suggests that unemployed individuals sometimes can affect their job prospects by undertaking a costly action like deciding to move or retrain. Realistically, such an opportunity arises only for some individuals and the identity of those is unobservable. Unemployment insurance should...

We analyze a standard environment of adverse selection in credit markets. In our environment, entrepreneurs who are privately informed about the quality of their projects need to borrow in order to invest. Conventional wisdom says that, in this class of economies, the competitive equilibrium is...

This expository paper describes the factors that contribute to failure of health insurance markets, and the regulatory mechanisms that have been and can be used to combat these failures. Standardized contracts and creditable coverage mandates are discussed, along with premium support, enrollment...

This paper studies a model of announcements by a privately informed government about the future state of the economic activity in an economy subject to recurrent shocks and with distortions due to income taxation. Although transparent communication would ex ante be desirable, we find that even a...

This paper formalizes in a fully-rational model the popular idea that politicians perceive an electoral cost in adopting costly reforms with future benefits and reconciles it with the evidence that reformist governments are not punished by voters. To do so, it proposes a model of elections where...

We study the optimal mechanism for downsizing the public sector which takes into account different informational constraints (complete versus asymmetric information on each workers efficiency) and political constraints (mandatory versus voluntary downsizing). Under complete information, the...

Obtaining information about changes in market conditions is vital for the survival of the firms operating in a changing environment. In this paper, we offer a theory of information flows in a setting in which the principal faces a project choice and needs to induce the agent, who is responsible...

This paper is the first to present empirical evidence consistent with models of signaling through unemployment and to uncover a new stylized fact using the 1988-2006 DWS, namely that, among white-collar workers, post-displacement earnings fall less rapidly with unemployment spells for layoffs...