We study equilibria for economies with hidden action in environments in which the agents' contractual relationships with competing financial intermediaries cannot be monitored (or are not contractible upon). We fully characterize equilibrium allocations and contracts for such economies, as well...

Suppose risk-averse managers can hedge the aggregate component of their exposure to firm's cash-flow risk by trading in financial markets but cannot hedge their firm-specific exposure. This gives them incentives to pass up firm-specific projects in favor of standard projects that contain greater...

We consider an economy where individuals face uninsurable risks to their human capital accumulation, and study the problem of determining the optimal level of linear taxes on capital and labor income together with the optimal path of the debt level. We show both analytically and numerically that...

When individuals' labor and capital income are subject to uninsurable idiosyncratic risks, should capital and labor be taxed, and if so how? In a two period general equilibrium model with production, we derive a decomposition formula of the welfare e ects of these taxes into insurance and...