Research on the welfare distributional effects of China's social medical insurance system 并列题名:Research on the welfare distributional effects of China's social medical insurance system Research on the distribution effect of China's fiscal and taxation system a study on the multi-fragmentation and integration of China's social medical insurance system Research on the distribution effects of fiscal policy in China 并列题名:Research on the distribution effect of China's fiscal and taxation system Research on the optimization of rural social endowment insurance system Research on the economic effects of China's new rural pension system Studies on the reform of social medical insurance system 并列题名:Research on the optimization of rural social endowment insurance system