Convertible debt usage and the pricing of audit services

This study examines the association between convertible debt usage and the pricing of audit services. We test the (nondirectional) hypothesis that convertible debt usage is associated with audit effort and therefore fees, due to its association with client business risk and its dilutive effect on earnings per share. We find a positive association between audit fees and convertible debt, suggesting that auditors view convertible debt as a source of risk. We also find that audit fees related to convertible debt are sensitive to CEO bonus incentives and to market valuation incentives. Our results suggest that following the Public Company Accounting Oversight Board (PCAOB) regulation, auditors exert greater effort on convertible debt, but no additional effort on straight debt. Our inferences are robust to using a change in audit fees specification, controlling for litigation risk, and controlling for functional form misspecification.

Do Firms Purposefully Change Capital Structure? Evidence from an Investment-Opportunity Shock to Drug Firms

We study the capital structure changes of drug firms after an investment-opportunity shock brought about by the Biologics Price Competition and Innovation Act. Using a difference-in-difference approach, we show that the shock led drug firms to make their capital structures less constraining by decreasing leverage, shortening debt maturity, increasing unsecured debt, and reducing convertible debt. New debt covenants became less restrictive and firms raised equity to preserve borrowing capacity. Our results support the view that firms actively manage their capital structures to bolster financial flexibility and increase debt capacity in response to new investment opportunities.

Contingent Convertible Debt: The Impact on Equity Holders

Contingent Convertible (CoCo) is a hybrid debt issued by banks with a specific feature forcing its conversion to equity in the event of the bank’s financial distress. CoCo carries two major risks: the risk of default, which threatens any type of debt instrument, plus the exclusive risk of mandatory conversion. In this paper, we propose a model to value CoCo debt instruments as a function of the debt ratio. Although the CoCo is a more expensive instrument than traditional debt, its presence in the capital structure lowers the cost of ordinary debt and reduces the total cost of debt. For preliminary equity holders, the presence of CoCo in the bank’s capital structure increases the shareholder’s aggregate value.