A number of delta-hedged equity option strategies exhibit very large average returns. We show that much of the profitability of these strategies can be explained by an IPCA factor model. The economic magnitude of the return-adjustment produced by IPCA is impressive: even before transaction costs, the average IPCA alpha of 46 long-short trading strategies constructed on previously discovered signals, is close to zero and contrasts with average realized returns of over 80 basis points per month. Our IPCA model can be used as a benchmark for assessing the performance of other option portfolios.

[Does the ability of suppliers of corporate debt capital to hedge risk through credit default swap (CDS) contracts impact firms' capital structures? We find that firms with traded CDS contracts on their debt are able to maintain higher leverage ratios and longer debt maturities. This is especially true during periods in which credit constraints become binding, as would be expected if the ability to hedge helps alleviate frictions on the supply side of credit markets.]

Does the ability of suppliers of corporate debt capital to hedge risk through credit default swap (CDS) contracts impact firms' capital structures? We find that firms with traded CDS contracts on their debt are able to maintain higher leverage ratios and longer debt maturities. This is especially true during periods in which credit constraints become binding, as would be expected if the ability to hedge helps alleviate frictions on the supply side of credit markets. The Author 2013. Published by Oxford University Press on behalf of The Society for Financial Studies. All rights reserved. For Permissions, please e-mail: [email protected]., Oxford University Press.

Conventional wisdom suggests that high-reputation banks will generally produce good securities to maintain their long-run reputation. We show with a simple model that, when securities are complex a high-reputation bank may produce assets that underperform during market downturns. We examine this possibility using a unique sample of $10.1 trillion of CLO, MBS, ABS, and CDOs. Contrary to the conventional view, securities issued by more reputable banks did not outperform but, rather, had higher proportions of capital in default.

We use information from over 2 million trading strategies randomly generated using real data and from strategies that survive the publication process to infer the statistical properties of the set of strategies that could have been studied by researchers. Using this set, we compute t-statistic thresholds that control for multiple hypothesis testing, when searching for anomalies, at 3.8 and 3.4 for time-series and cross-sectional regressions, respectively. We estimate the expected proportion of false rejections that researchers would produce if they failed to account for multiple hypothesis testing to be about 45%.