We construct a measure of the pairwise relatedness of firms’ human capital to examine whether human capital relatedness is a key factor in mergers and acquisitions. We find that mergers are more likely and merger returns and postmerger performance are higher when firms have related human capital. These relations are stronger or only present in acquisitions where the merging firms do not operate in the same industries or product markets. Reductions in employment and wages following mergers with high human capital relatedness suggest that the merged firm has greater ability to layoff low quality and/or duplicate employees and reduce labor costs. We further show in a falsification test that human capital relatedness has no effect on acquiring firm returns in asset sales when little or no labor is transferred, which helps validate our measure of human capital relatedness.

We model the firm's decision to invest in liquid assets when external financing is costly. The optimal amount of liquidity is determined by a tradeoff between the low return earned on liquid assets and the benefit of minimizing the need for costly external financing. The model predicts that the optimal investment in liquidity is increasing in the cost of external financing, the variance of future cash flows, and the return on future investment opportunities, while it is decreasing in the return differential between the firm's physical assets and liquid assets. Empirical tests on a large panel of U.S. industrial firms support the model's predictions.

We examine the effect of CEO pensions and deferred compensation (inside debt) on firm cash holdings and the value of cash. We document a positive relation between CEO inside debt and firm cash holdings. This positive effect is magnified by firm leverage and mitigated by the presence of financial constraints. We further find that the marginal value of cash to shareholders declines as CEO inside debt increases. Our evidence supports the view that inside debt tilts managerial incentives toward bondholders and helps balance the competing interests of stockholders and bondholders. The evidence also suggests, however, that inside debt can harm shareholder value by encouraging excess cash holdings.

We examine the effect of ex ante litigation risk on the price and non-price terms of loan contracts. Since expected litigation is endogenous, we focus on federal circuit court judge ideology to generate plausibly exogenous variation in the outcome of a class action lawsuit. We find that loans issued by firms headquartered in circuits with a higher likelihood of drawing a liberal panel of judges in a class action lawsuit have higher loan spreads, shorter maturity, and a larger number of and more restrictive covenants. To strengthen our claim that judge ideology affects loan contracting through its effect on the outcome of a class action lawsuit, we show that the influence of judge ideology on price and nonprice terms of loans is strongly influenced by factors that influence the probability of a class action lawsuit. Overall, our results bolster the case that litigation risk has a causal effect on debt contracting.

We investigate the effect of growth opportunities in a firm's investment opportunity set on its joint choice of leverage, debt maturity, and covenants. Using a database that contains detailed debt covenant information, we provide large‐sample evidence of the incidence of covenants in public debt and construct firm‐level indices of bondholder covenant protection. We find that covenant protection is increasing in growth opportunities, debt maturity, and leverage. We also document that the negative relation between leverage and growth opportunities is significantly attenuated by covenant protection, suggesting that covenants can mitigate the agency costs of debt for high growth firms.

We examine the wealth effects of mergers and acquisitions on target and acquiring firm bondholders in the 1980s and 1990s. Consistent with a coinsurance effect, below investment grade target bonds earn significantly positive announcement period returns. By contrast, acquiring firm bonds earn negative announcement period returns. Additionally, target bonds have significantly larger returns when the target's rating is below the acquirer's, when the combination is anticipated to decrease target risk or leverage, and when the target's maturity is shorter than the acquirer's. Finally, we find that target and acquirer announcement period bond returns are significantly larger in the 1990s.

We offer the first empirical evidence on the adverse effect of credit default swap (CDS) coverage on subprime mortgage defaults. Using a large database of privately securitized mortgages, we find that higher defaults concentrate in mortgage pools with concurrent CDS coverage, and within these pools the loans originated after or shortly before the start of CDS coverage have an even higher delinquency rate. The results are robust across zip code and origination quarter cohorts. Overall, we show that CDS coverage helped drive higher mortgage defaults during the financial crisis.