Purpose There is currently a host of measurements of corporate social performance (MCSPs) each with its own individual merits and concerns. This paper aims to bring new insights into measuring corporate social performance (CSP) by advocating the use of a complementary indicator known as the social contribution value per share (SCVPS) developed by the Shanghai Stock Exchange in China. Design/methodology/approach A three-dimensional model is built to dissect the theoretical foundation of SCVPS. Next, this paper undertakes an extensive literature review of the criteria and methodologies which SCVPS relies upon to assess a firm’s social performance. Then SCVPS is critically compared with other commonly used MCSPs from different angles. Findings This paper highlights the major limitations of some MCSPs, namely, the lack of transparency, selection biases and the exclusion of controversial industries. It is suggested that SCVPS is worthy to be considered as a complementary indicator for CSP given its innovativeness, standardization and practicability. Practical implications The authors argue that there is great theoretical and practical significance for firms to set per-share social contribution indicators using SCVPS on a global basis, which helps to enrich decision-making processes when combined with other MCSPs. Originality/value This paper suggests SCVPS as a complementary indicator of social performance and anatomizes this choice indicator with other MCSPs in terms of their theoretical underpinnings, practical applications and probable deficiencies.

PurposeThis study introduces Social Contribution Value per Share (SCVPS), an indicator devised by the Shanghai Stock Exchange (SSE), as an easy-to-interpret Measurement of Corporate Social Performance (MCSP) to the international research arena. The authors first explore the informativeness role of voluntary disclosure of SCVPS in the stock market. The authors then go one step further to demonstrate the relationship between corporate value creation quantified by SCVPS and firm value.Design/methodology/approachThe study takes a new perspective – a quasi-natural experiment of SCVPS disclosure in 2008 and uses a Propensity Score Matched Difference in Difference model (PSM-DiD) to investigate the impact of SCVPS disclosure policy on stock price synchronization and firm value. Through manually recalculating all the values of SCVPS and its components, this study enables us to further investigate the relationship between corporate value creation for various stakeholders and firm value.FindingsThis study reveals that voluntary disclosure of SCVPS can signal firm-specific information to the market and reduce noise in returns, thus affecting stock price synchronization. The findings further demonstrate that such firm-specific information has value relevance to firm performance. Moreover, the authors demonstrate that corporate value creation for different stakeholders measured by SCVPS can significantly affect firm value. The moderating effects of ownership structures and industry types are also investigated, and an endogeneity test confirms the robustness of the findings.Practical implicationsThis study argues that SCVPS offers an economically viable way for firms, including small-and-medium-sized enterprises, in emerging economies to disclose corporate value creation and provide the public with a direct understanding and appreciation of the values created by corporations for stakeholders.Originality/valueThe result makes contributions to the MCSP literature and explores the informativeness of SCVPS disclosure. Besides, this paper demonstrates that SCVPS offers a good setting to explore the effect of corporate value creation on firm performance in an emerging market.

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