LIU Qinglin，etc：Welfare Effect of the Agricultural Market Access Policy Reform in China ——Based on the Method of Trade Restrictiveness Index

Abstract：Based on Anderson-Nearys Trade Restrictiveness Index, this paper extends the Trade Restrictiveness Index from small country model to big country model through the condition of endogenous world price and finally derives the welfare effect model of market access policy reform.The theoretical analysis shows that under some conditions tariff policy reform of lowering the tariff rate will improve the social welfare, and NTB policy reform of relaxing the quota will also improve the social welfare.Besides, the study of the welfare effects of Chinas market access policy reform finds that the marginal cost of Chinas agricultural tariff is negative, while the shadow price of NTB policy is positive, which suggest that the market access policy reform of lowering the tariff rate and increasing the quota will promote the social welfare level.

Key words： Trade Restrictiveness Index    Agricultural Market Access Policy    Welfare Effect

source:Finance & Trade Economics ,No.11,2015