摘要
随着铁矿石需求增长,国际铁矿石贸易在不断扩大。根据UN comtrade(联合国统计司)发布的2001—2010年国际铁矿石贸易数据,采用复杂网络理论分析方法,计算了国际铁矿石贸易复杂网络的密度、节点度、中心性、点强度、聚类系数等复杂网络特征,根据这些特征分析了近10年国际铁矿石贸易网络的演变规律。结果表明:2007年美国次贷危机爆发前,铁矿石贸易关系的紧密程度和进出口国家数量逐年增加,荷兰、中国、德国、巴西和意大利在国际铁矿石贸易网络中处于重要地位,资源国的铁矿石出口能力逐渐增强。受金融危机影响,铁矿石贸易下降。2009年后,在全球经济复苏局势下,铁矿石市场全球化的趋势也加快步伐,铁矿石贸易进入强劲增长期,区域集团化趋势更加明显。
With the growth in demand for iron ore, the international iron ore trade in expanding. According to the international iron ore trade data published by UN COMTRADE （ UNSD ） from 2001 to 2010, this article used the theory of complex network analysis method and calculated such complex network properties as the density, node degree, central, node strength and clustering coefficient of the international iron ore trade complex network based on these characteristics. This article analyzed the evolution of the international iron ore trade network nearly 10 years. The results show that before the outbreak of the U.S. subprime mortgage crisis in 2007, the tightness of the iron ore trade relations and the number of exporting and importing countries has increased year by year. The Netherlands, China, Germany, Brazil and Italy in an important position in the international iron ore trade network. Iron ore export capacity of the resources in the cotmtry＇s is gradually increased. Affected by the financial crisis, the decline in iron ore trade. After 2009, under the global economic recovery situation, the global trend of the iron ore market also speed up, the iron ore trade into a strong growth period, the trend is more pronounced in the regional grouping.
出处
《经济地理》
CSSCI
北大核心
2013年第1期92-97,共6页
Economic Geography
基金
国家自然科学基金项目(71173199)
教育部人文社会科学研究规划基金项目(10YJA630001)
关键词
国际贸易
铁矿石
复杂网络
演变规律
international trade
iron ore
complex network
evolution
