Research on the regulatory mechanisn and effect of social insurance on income distribution in China Research on the formation mechanism and effect of financial resource misallocation in China 并列题名：Research on the formation mechanism and effect of financial resource misallocation in China Research on the interactive mechanism between education and income distribution Research on the agglomeration effect of the professional insurance intermediary institutions in China Research on the mechanism and income distribution effect of indirect taxation in China Statistical measures and effects of noncash income distribution in China 并列题名：Research on the agglomeration effect of the professional insurance intermediary institutions in China 并列题名：Statistical measures and effects of noncash income distribution in China Research on the formation mechanism, effect and optimal allocation of fiscal R&D expenditure mislocation in China