We analyze the impact of option trading and margin rules on the behavior of informed traders and on the microstructure of stock and option markets. In the absence of binding margin requirements, the introduction of an options market causes informed traders to exhibit a relative trading bias...

This paper studies how collateral affects bond yields. Using a large dataset of public bonds, we document that collateralized debt has higher yield than general debt, after controlling for credit rating. Our model of agency problems between managers and claimholders explains this puzzling result...

An efficient signaling equilibrium with dividends and investment, or equivalently, dividends and either sales or repurchases of stock, is constructed and its properties are identified. Because corporate insiders can exploit two signals, the efficient mix minimizes dissipative costs. In...

Better investor protection could lead corporations to undertake riskier but value-enhancing investments. For example, better investor protection mitigates the taking of private benefits leading to excess risk-avoidance. Further, in better investor protection environments, stakeholders like...

We model the vulnerability of an economy to a financial crisis as arising from the interaction of the degree of economic specialization and bank debt financing. The probability of a financial crisis is shown to increase in the degree of economic specialization. Bank debt financing has the...