We develop, and apply to data on U.S. corporations from 1979-2004, tests of the standard doubly-stochastic assumption under which firms'default times are correlated only as implied by the correlation of factors determining their default intensities. This assumption is violated in the presence of...

Engineering and operations management decisions have become increasingly complex as a result of recent advances in information technology. The increased ability to access and communicate information has resulted in expanded system domains consisting of multiple agents, each exhibiting autonomous...

We investigate whether the volatility risk premium is negative by examining the statistical properties of delta-hedged option portfolios (buy the option and hedge with stock). Within a stochastic volatility framework, we demonstrate a correspondence between the sign and magnitude of the...

We document that short-horizon pricing discrepancies across firms' equity and credit markets are common and that an economically significant proportion of these are anomalous, indicating a lack of integration between the two markets. Proposing a statistical measure of market integration, we...

This submission discusses implications for the quality and safety of financial markets of proposed rules implementing the market-making provisions of section 13 of the Bank Holding Company Act, commonly known as the “Volcker Rule.” The proposed rules1 have been described by the Office of the...

I explain the key failure mechanics of large dealer banks, and some policy implications. This is not a review of the Financial crisis of 2007-2009. Systemic risk is considered only in passing. Both the Financial crisis and the systemic importance of large dealer banks are nevertheless obvious...

This note discusses the case for exempting foreign exchange derivatives from recent regulatory requirements for over-the-counter derivatives, including clearing, trade competition, and minimum collateral requirements. My conclusion is that the arguments that have been made for such an exemption...