| Achieving common prosperity for all people is the essential requirement of Chinese-style modernization,and the current phenomenon of large income disparity among residents is somewhat different from the ideal state to be achieved by common prosperity.The current income distribution structure is jointly determined by the primary distribution,redistribution and the third distribution,but at present the third distribution accounts for a small proportion,and it is more the primary distribution and redistribution that play a role.In order to further narrow the income gap,the role of the third distribution is increasingly prominent.As the core of the third distribution,philanthropy has a role in narrowing the income distribution gap,and thus the development of philanthropy largely determines whether the function of the third distribution in narrowing the income gap can be brought into full play.The development of philanthropy in recent years is mainly composed of corporate donations,and corporate income tax plays a key role in the process of corporate donations,which is an important reason why the corporate income tax policy on donations is constantly changing.2017 changes increase the carry-forward period for corporate charitable donations,which will also enhance the enthusiasm of corporate donations.However,due to the late development of philanthropy in China,there are still certain shortcomings in corporate income tax in encouraging corporate donations.Based on this background,based on combing the existing literature,this paper conducts a theoretical analysis at three levels: promoting fairness as a function of government,taxation as a means to promote common wealth,and corporate income tax as the third directional marker of distribution,and illustrates the influence mechanism of corporate income tax by combining the cost-effectiveness of corporate giving and the intrinsic mechanism of corporate income tax affecting corporate giving.The current situation of income distribution of residents,the current situation of the third distribution and the changes of corporate income tax policy are sorted out,and it is concluded that the corporate income tax in encouraging donations to promote the third distribution has problems such as the low number of public welfare social organizations that obtain pre-tax deduction status,imperfect legal requirements for public welfare donations,the lack of non-cash donation credits and insufficient tax incentives.According to the existing literature and the analysis of the theoretical basis,the data of listed companies from 2011-2019 were used to conduct an empirical analysis of the incentive effect of corporate income tax using a double logit model using fixed effects,and the research results show that the corporate income tax rate,net profit and corporate donation expenditure are positively related,and the increase of the carryover year in 2017 also positively promotes the enthusiasm of corporate donation.Since philanthropy is more developed in some foreign countries,three countries,the United States,the United Kingdom and Japan,are selected for analysis to compare and analyze the common features possessed by income tax policies that promote the third distribution.Finally,based on the current problems of corporate income tax in encouraging donations,the results of the empirical analysis and the characteristics of foreign income tax policies,we suggest the current corporate income tax policies in China,so that enterprises can be more conscious of donations and more proactive in their social responsibilities,thus promoting the development of philanthropy,the role of the third distribution,and the formation of an olive-shaped social income structure of common wealth.This will promote the development of philanthropy,the role of the third distribution,and the formation of a common wealthy olive-shaped social income structure. |