关键词: “一带一路”, 贸易网络, 技术进步, 社会网络分析

Abstract: Based on social network analysis, this paper analyzes the structural characteristics of trade networks along the “Belt and Road” in 20082018, empirically tests the impact of the centering location of the trade network on technological progress, and analyzes the heterogeneity of countries with different income levels. The results show that the overall trade structure of the countries along the “Belt and Road” is relatively loose. Italy, Turkey, Korea, Russia, China and Singapore are located at the core of the network, and there are 23 countries (regions) playing “intermediary” or “bridge” roles, influencing the trade links among the remaining countries. More than 40% of the countries (regions) have strong indirect trade relations with nontrading partners. The promotion of centering position of the trade network would significantly promote the technological progress of the home country. The marginal impact of indirect trade on the technological progress is greater than that of direct trade. The direct and indirect trade centrality and the trade intensity in highincome and middleincome countries have a significant and positive impact on technological progress, and the trade intensity in lowincome countries also promotes the technological progress of home countries.

Key words: “Belt and Road”, trade networks, technological progress, social network analysis