Corporate ethical behavior and the cost of equity capital: evidence from the world’s most ethical companies

Abstract

Purpose This paper aims to examine the effect of the corporate ethical approach on the cost of equity capital. This study is conducted on a large international sample on behalf of the world’s most engaged firms from an ethical point of view in 2015. Design/methodology/approach The multivariate linear regression model is used to meet the purpose of this study and research hypotheses are also examined using a sample of 80 of most ethical firms in the world during the year 2015. Moreover, three variables (i.e. business ethics, corporate social responsibility and executive compensation based on the achievement of sustainable development goals) are used to reflect the corporate ethical approach and the implied cost of equity capital is used for estimating the cost of equity. In this regard, equity cost estimation is the most appropriate approach to test the effect of business ethics on the cost of financing firms. Findings Based on a sample of 80 firms emerging as the world’s most ethical firms in 2015, the results revealed that firms with better ethics scores are significantly associated with a reduced cost of equity capital. This paper also demonstrates that the executive incentive pays that are based on the objectives of sustainable development are able to explain different outcomes regarding the relation between corporate ethical behaviors and the cost of equity. These findings support arguments in the literature that firms with socially responsible practices have a higher valuation and lower risk. Originality/value This study provides implications for global regulators and policymakers when setting social reporting standards, suggesting that corporate ethical engagement reduces the cost of equity capital by decreasing the information asymmetry and thereby reducing the firms’ risk. Therefore, the findings may be informative to international managers and investors when considering the effect of business ethics on the firm’s ex-ante cost of equity. In this perspective, the voluntary disclosure of information makes it possible to mitigate the problems of asymmetry of information and conflict of interest between the firm and its main providers of capital, which could reduce the cost of equity.

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