摘要
本文扩展了传统的引力模型,认为决定国际贸易网络结构的因素,不仅包括GDP和绝对距离,还包括国土面积、贸易国之间的收入差距、是否相邻以及金融危机的冲击。文章以中国东盟自由贸易区为例,运用二元网络分析法,计算了国际贸易网络的密度和各国在网络中的三种中心性,将整个网络分为四个子群,区分了在网络中处于核心地位和边缘地位的国家。文章还考察了国际贸易网络的权重结构,计算了国际贸易网络和剩余网络的顶点强度、平均最近邻顶点强度和顶点集聚强度等指标,探讨了这三个指标的关系。最后,计算了2004-2010年间国际贸易网络、剩余贸易网络和随机网络的网络强度熵、网络权重熵和冗余比,比较了三种网络在这三个指标上的差别和演化趋势。
This paper extends the traditional gravity model and believes that the factors determining the network structure of international trade includenot on- ly GDP and absolute distance, but also land area, the income gap between the trading countries, the situation of adjacent and financial crisis. This paper takes China-ASEAN Free Trade Area as an example. The method of binary network analysis is used. The density of the international trade network and three types of centrality are calculated. The entire network is divided into four sub-groups. Core countries and marginalized countries are distinguished. The article also exam- ines the weight structure of the international trade network, calculates vertex strength, mean nearest neighbor vertex strength and vertex gather strength of inter- national trade network and the remaining network, and finds the relationship among vertex strength, mean nearest neighbor vertex strength and vertex gather strength as well as other indicators to explore the relationship between these three indicators. Finally, this paper calculates the entropy of the network strength, the entropy of network weights and redundancy of the international trade net- work, the remaining trade networks and random networks from 2004 to 2010, and compares differences and the trends of evolution of the three networks in these three indicators.
出处
《国际贸易问题》
CSSCI
北大核心
2012年第12期72-83,共12页
Journal of International Trade
基金
江西省社科规划基金项目"江西加快外贸发展方式转变研究"(项目编号:11JL02)的阶段性成果
关键词
国际贸易
网络结构特征
引力模型
剩余网络
随机网络
International trade
Network structural characteristics
Gravity mod-el
Remaining network
Random network
