In different societies, supporting vulnerable groups and improving income distribution has always been one of the concerns of the government, economists and sociologists. Income distribution is not only one of the economic issues, but also it is one of the important social and political indicators. One of the financial privatization methods in the world is the privatization of coupon payments (justice shares), whose goals are to prevent the income gap between different strata of society and help to distribute ownership and as a result, income more equitably in the country. The purpose of the research is to determine the factors affecting the optimal management of justice shares in order to increase social well-being. The current study is a fundamental (exploratory) research and a mixed method (qualitative-quantitative) has been used to investigate the research objectives. The statistical population of this research in the qualitative section includes university professors in the field of public administration, managers of privatization organizations and the Ministry of Economic Affairs and Finance, and managers of justice share provincial investment companies. The statistical population of this research is in the quantitative section, including high and middle managers, deputies and senior experts of the Privatization Organization, the Stock Exchange and Securities Organization, the Ministry of Economic Affairs and Finance, and justice share provincial investment companies. The data required for the research has been collected through a questionnaire. In order to analyze the data collected in the qualitative section, the grounded theory method is used. In the quantitative section, the DEMATEL method is used. The results showed that the causal, intervening, axial, contextual, individual and environmental factors had effects on the optimal management of justice shares in order to increase social welfare.