Is this rating worth it? The benefits of credit ratings in the dynamic tradeoff model

Karolina Krystyniak and Viktoriya Staneva

International Journal of Managerial Finance, 2023, vol. 19, issue 5, 1147-1177

Abstract: Purpose - This study seeks to identify the main determinants of the optimal capital structure by reexamining the interpretation of the conventional set of explanatory variables used as proxies for the costs and benefits of debt in the context of the dynamic tradeoff theory. Design/methodology/approach - The authors isolate the variation in leverage due to different targets from that caused by deviations by aggregating the data across a dimension identifying firms with similar targets – credit rating category. Findings - Contrary to theoretical priors, large and profitable rated firms have lower targets. The authors show that size and profitability proxy for non-financial risk and that, for rated firms, non-financial risk is positively correlated to the optimal leverage. The benefits of a better rating outweigh the costs of foregone tax shields for firms with relatively low non-financial risk. The authors find support for that theory in institutional trading – institutional investors do not punish highly rated firms when credit downgrades occur. Originality/value - This paper contributes to the capital structure literature by developing a new approach based on data aggregation. This study is the first, to the authors’ knowledge, to find a positive effect of the firm's non-financial risk on target leverage among rated firms. The authors argue that the benefit of a better credit rating is an increasing function of the rating itself. The authors also contribute to the literature on the impact of credit ratings on the capital structure choices of the firm.

Keywords: Capital structure; Dynamic tradeoff; Credit ratings; Leverage; Institutional trading; G320 Financing Policy; Capital Structure (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:eme:ijmfpp:ijmf-08-2022-0346

DOI: 10.1108/IJMF-08-2022-0346

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