We study two-period pure-exchange Capital Asset Pricing Model (CAPM) economies with a given degree of incompleteness of financial markets and given degrees of restricted participation of agents in the markets.We characterize the optimal financial asset structure and the optimal composition of...

We study two-period pure-exchange Capital Asset Pricing Model (CAPM) economies with incomplete financial markets and restricted participation. We characterize the optimal financial-market structure and the efficient innovations consisting of both the introduction of new assets and the...

We model the opacity of over-the-counter (OTC) markets in a setup where agents share risks, but have incentives to default and their financial positions are not mutually observable. We show that this setup results in excess "leverage" in that parties take on short OTC positions that lead to...

We show that financial sector bailouts and sovereign credit risk are intimately linked. A bailout benefits the economy by ameliorating the under-investment problem of the financial sector. However, increasing taxation of the non-financial sector to fund the bailout may be inefficient since it...

We present a model in which managers are risk-averse and firms compete for scarce managerial talent ("alpha"). When managers are not mobile across firms, firms provide efficient compensation, which allows for learning about managerial talent and for insurance of low-quality managers. When...

While the direct effect of lender-of-last-resort (LOLR) facilities is to forestall the default of financial firms that lose funding liquidity, an indirect effect is to allow these firms to minimize deleveraging sales of illiquid assets. This unintended consequence of LOLR facilities manifests...

What is the effect of financial crises and their resolution on banks' choice of liquid asset holdings? When risky assets have limited pledgeability and banks have relative expertise in employing risky assets, the market for these assets clears only at fire-sale prices following a large number of...

Systemic risk is modeled as the endogenously chosen correlation of returns on assets held by banks. The limited liability of banks and the presence of a negative externality of one bank's failure on the health of other banks give rise to a quot;systemic risk-shiftingquot; incentive where all...

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...

We show that limited liability can induce profit-maximizing bank owners to herd with other banks. When bank loan returns have a systematic factor, the failure of one bank conveys adverse information about this systematic factor and increases the cost of borrowing for the surviving banks relative...