摘要
本文基于Anderson-Neary贸易限制指数理论,通过加入世界价格内生的条件,将贸易限制指数的小国模型扩展到大国开放经济中,得到市场准入政策改革的福利效应模型。通过理论分析得到,在一定的前提条件下,降低关税率的关税政策改革会导致社会福利水平的提升,放松配额、增加配额量的非关税壁垒政策改革也会增进社会福利水平。我国农产品市场准入政策改革的实证研究表明,关税的边际成本为负,非关税壁垒政策的影子价格为正,也就是说,我国降低关税率的关税政策改革和增加配额量的非关税壁垒政策改革都会促进社会福利水平的提升。
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.
出处
《财贸经济》
CSSCI
北大核心
2015年第11期101-113,共13页
Finance & Trade Economics
关键词
贸易限制指数
农产品市场准入政策
福利效应
Trade Restrictiveness Index, Agricultural Market Access Policy, Welfare Effect
