Research on the economic effects of import barriers reduction in China's agricultural products Research on the economic effects of excise taxation in China Research on the the route of regional public brand construction of agricultural products Research on the conduction effect of coal price fluctuation on China entity economy. Research on the conduction effect of coal price fluctuation on China entity economy Research on the construction of regional public brands for agricultural products Research on the economic integration of East Asia influence on China agriculture Research on the creation of production mode of cultural product Research on the microeconomic effects of policy-based agricultural insurance Research on soil pollution prevention and control of agricultural products