摘要：本文基于1999-2015年G20国家间出口贸易数据，运用修正的引力模型测算了G20国家间出口贸易的空间关联关系，利用社会网络分析（SNA）研究了出口贸易的空间网络结构特征及其效应，最后采用二次指派程序（QAP）方法考察出口贸易的影响因素。研究发现：从整体网络来看，G20国家间出口贸易空间关联呈现出复杂的、多线程的网络结构，网络紧密程度逐年提高，网络效率，网络等级度基本稳定；从个体中心性来看，中国、印度、巴西、俄罗斯等8个国家的点度中心度较高，中国、印度、巴西、美国等7个国家的中介中心度较高，中国、印度、巴西、俄罗斯等8个国家的接近中心度较高；从块模型结果看：第一板块是“双向溢出板块”，第二板块是“经纪人”板块，第三板块是“净受益”板块，第四板块是“净溢出”板块；G20国家间出口贸易空间关联网络的影响因素分析结果显示，GDP对G20国家间出口贸易有显著的正向影响。93609

毕业论文关键词：G20国家间出口贸易、社会网络分析、空间关联、二次指派程序

Abstract: In this paper, 1999-2015 G20 national export trade based on the data, using the modified gravity model estimates the spatial relationship of export trade among the G20 nations, using social network analysis (SNA) space network structure of export trade and its effect, finally using the two assignment procedure (QAP) method to investigate the effect of factors of export trade。The study found: from the whole network, G20 countries export trade space correlation exhibits a complicated multi thread, network structure, network close degree increased year by year, the efficiency of the network, the network level of basic stability;From the inpidual point of view, Chinese, India, Brazil, Russia and other 8 countries centrality is higher, China, India, Brazil, the United States and 7 other countries intermediary center is high, Chinese, India, Brazil, Russia and other 8 countries close to the center of the high degree of;From the results of model: the first block plate is the "two-way overflow plate", the second segment is the "broker" plate, third plate is the "net benefit" plate, the fourth plate "net spillover effect of G20 plate; national export trade network spatial correlation factor analysis results show that GDP has a significant positive impact on G20 export trade between countries。

Keywords: G20inter-country export trade, SNA, spatial correlation, QAP

目   录

毕业论文独创性声明 2

1  引言 6

2  文献综述 6

3 方法和数据 8

3。1  G20国家间出口贸易空间关联关系的确定 8

3。2  网络特征指标 8

3。3  数据来源 9

4   G20国家间出口贸易空间关联的网络结构特征 9

4。1  整体网络结构特征及演变趋势 9

4。2  中心性分析 11

4。3  块模型分析 13

5  G20国家间出口贸易空间关联网络的效应分析 16

6  G20国家间出口贸易的影响因素----基于QAP方法 17

6。1  理论假设、数据选择与分析方法 17

6。2  QAP相关分析