7 Conclusion
Among the various CSR topics, numerous studies have focused on investigating the efect of CSR on tax avoidance. Studies have argued that frms engaging in CSR due to a corporate culture based on moral perspectives tend to have a low level of tax avoidance. By contrast, frms implementing CSR as a risk management strategy tend to have a high level of tax avoidance. However, if corporate managers regard CSR and tax avoidance as two independent strategies, no relationship exists between them. This study employs matching methods to adjust for the characteristic variables of the CSR and non-CSR frms to approximate each other, thereby evaluating the relationship between CSR and tax avoidance. This study uses the Chinese A-share listed frms as research samples, and those reported in the CSR Blue Book are defned as CSR frms. The research period is from 2009 to 2016. Nearest neighbor, radius, and kernel matching methods are adopted to control for the characteristics of the two groups of frms, and three measures of the book-tax diference are used as the proxy variables for tax avoidance. The empirical results show that the average treatment efect on the treated is positive or nonsignifcant. The regression analysis results indicate that the efect of CSR activities on tax avoidance is positive. Collectively, although the empirical results of diferent econometric models are not completely the same, most results suggest that CSR frms exhibit a higher level of tax avoidance than non-CSR frms. The robustness check also shows that the long-term efective tax rate of the CSR frms is lower than that of the non-CSR frms. This means that adopting another dependent variable does not qualitatively change the results.