In recent years there has been a growing interest in macro models with heterogeneity in information and complementarity in actions. These models deliver promising positive properties, such as heightened inertia and volatility. But they also raise important normative questions, such as whether...

In 2007, the Consumer Product Safety Commission (CPSC) issued 276 recalls of toys and other children's products, a sizeable increase from previous years. The overwhelming majority of the 2007 toy recalls were due to high levels of lead content and almost all of these toys were manufactured in...

This article describes the anatomy of health insurance. It begins by considering the optimal design of health insurance policies. Such policies must make tradeoffs appropriately between risk sharing on the one hand and agency problems such as moral hazard (the incentive of people to seek more...

This paper is concerned with the economics of mental health. We argue that mental health economics is like health economics only more so: uncertainty and variation in treatments are greater; the assumption of patient self-interested behavior is more dubious; response to financial incentives such...

This paper characterizes the effects of reserve requirements on financial loans in the presence of moral hazard on the lender side (i.e., the anticipation that the taxpayer will bailout lending banks if large default will occur) and sovereign risk on the borrower side. The impacts of such...

The central result of this paper is that when moral hazard ispresent,competitive equilibrium is almost always (constrained) inefficient. Moral hazard causes shadow prices to deviate from market prices. To remedy this market failure, the government could introduce differential commodity taxation....

We exploit recent decades of US state-level reforms to the generosity of workers' compensation programs to estimate the associated moral hazard, utilizing an event- study design and analyzing 9 separate reform categories. The reforms vary - some affecting benefit size, some the probability of...

We survey several mechanisms that explain the composition of international capital flows: foreign direct investment, foreign portfolio investment and debt flows (bank loans and bonds). We focus on information frictions such as adverse selection and moral hazard, and exposure to liquidity shocks,...