关税升级与垄断竞争产业发展:基于空间经济学的分析  

Tariff Escalation and the Development of Monopolistic Competition Industry:A Study Based upon Spatial Economics

作　　者：宋玉华[1] 吴聃[2] 

机构地区：[1]浙江大学国际商务研究所 [2]浙江大学经济学院

出　　处：《世界经济》2006年第7期15-27,共13页The Journal of World Economy

摘　　要：在不考虑其他贸易成本的情况下,有效关税保护理论认为关税升级能够在较低的关税水平下保护下游产业,但该结论是不完整的。本文把关税与运输成本合成为贸易成本,引入两国不对称的关税升级体系,建立了一个空间经济学模型,试图完整地研究关税升级对垄断竞争产业发展的影响。研究表明,一个关税升级程度高的国家的垄断竞争产业拥有更多的发展机会,但在一定条件下,关税升级程度低的国家的垄断竞争产业也可能实现集聚式的发展。在此基础上,本文提出在不同贸易成本范围下的关税升级政策选择。Excluding other trade cost,theory of effective rate of tariff protection considers that tariff escalation can protect downstream industry even at a low tariff level.Combining tariff and transport cost to trade cost,this pa- per establishes a spatial economic model including asymmetric tariff escalation system to reveal how tariff escala- tion system can affect the development of monopolistic competition industry.Following the approach of spatial e- conomics,the equilibrium structure of the model can be found through numerical examples.In the model,the monopolistic competition industry in the country with higher tariff escalation has more development chances. However,under some conditions the monopolistic competition industry in the country with lower tariff escalation probably can cluster,too.In the end,the paper gives trade escalation policies suggestion according to different trade cost level.

关 键 词：贸易成本 关税升级 中间品贸易 垄断竞争产业发展 

分 类 号：F745[经济管理—国际贸易]