中文摘要：

本文作者采用分析各主体间“关系”的社会网络分析方法探讨全球生产服务贸易网络特征，分析结果显示：国家间的生产服务贸易联系日趋紧密且存在延续性；各国的贸易网络特征呈偏态分布。实证结果表明：社会网络的中心性、联系强度对全球价值链参与度和位置指数具有正面作用；社会网络的异质性对全球价值链参与度为负面影响，对位置指数为正面影响。

英文摘要：

To analysis production service trade＇ s status in the global value chain division of labor should place it in the whole trade network system. This paper uses social network analysis method to investigate the network features of production service trade, including degree, strength and disparity. The analysis resuits show that, the relationship of production service trade between countries increasingly closed, and the trend is continuous, and the trade network characteristics in different countries shows a skewness distribution. The empirical results show that, the degree of centrality in social network and strengthof connection have positive effect on the participation and position in the global value chain; the disparity of social network has negative effect on the participation in the global value chain,while has positive effect on the position in the global value chain.