Research on the distributive effects of China's basic old-age insurance in the transition period Research on distributive justice and disadvantaged groups in the transition period Research on the distribution effect of China's fiscal and taxation system Research on the distribution effects of fiscal policy in China Research on the development of newspaper in west China during the transitional period research on the public credibility of TV media during the transition period Research on executive compensation plan in transition period Research on the welfare distributional effects of China's social medical insurance system Research on the demand and policy of basic old-age insurance for rural residents in China Research on the agglomeration effect of the professional insurance intermediary institutions in China