Cash settlements became a popular design feature in convertible securities once they obtained favorable accounting treatment for diluted earnings per share in 2002. The unexpected proliferation of cash settlements provoked the FASB to eliminate their favorable accounting treatment in 2008. We find that shareholders of firms that use cash-settled convertibles react negatively to the announcement of these recent changes. Firms that issued cash-settled convertible debt to avoid earnings dilution no longer have an incentive to keep them on their balance sheets. Consistent with this observation, we find that investors respond more favorably if the cash-settled convertibles of these firms include call features. We conclude that call features can be valuable in times of uncertainty related to possible accounting changes as they allow the firm to efficiently mitigate the effects of the accounting changes on their financial reporting.

We review the literature on the issuance motives, shareholder wealth effects, and design of convertible bonds. Empirical studies on convertible debt issuance mainly focus on testing the predictions of four traditional theoretical models based on convertibles' potential to mitigate agency or adverse selection costs, and obtain mixed evidence. Recent studies on shareholder wealth effects of convertible bond issues highlight the need to control for arbitrage-related short selling and post-issuance risk changes. Studies on the determinants of convertible bond design uncover earnings management, as well as catering incentives to convertible arbitrage funds, as important determinants of innovations in convertible bond characteristics. Overall, our review indicates that recent empirical research on convertible debt provides valuable insights into issue motives and determinants of financial innovations, but also considers the broader question of how investor demand characteristics impact corporate finance decisions. We conclude with an overview of potential research questions to be addressed by future research on hybrid securities.