We argue that a country’s position in preferential trade agreements (PTAs) network affects its global value chain (GVC) participation level through two opposite effects: the resource allocation effect, which promotes the GVC participation level, and the market substitution effect, which decreases it. Using data from 43 countries over the 2000–2014 period, we find that the overall centrality of a country's position in the ego-centered PTAs network is positively associated with its GVC participation with other member countries, suggesting that the resource allocation affect dominates the market substitution effect. However, upon decomposing the PTAs network into private and common networks, we find that the centralization of a country's position in the private PTAs network has a negative effect on its GVC participation. In contrast, the centralization of a country's position in the common PTAs network has a positive effect on its GVC participation. Furthermore, the centralization of the private network weakens the effect of individual deep PTAs on bilateral GVC participation, while the centralization of the common network strengthens the effect of individual deep PTAs on bilateral GVC participation. A series of tests confirms the robustness of our main findings.

我们认为，一国在优惠贸易协定（PTAs）网络中的地位通过两种相反的效应影响其全球价值链（GVC）参与水平：资源配置效应（提高GVC参与水平）和市场替代效应（降低GVC参与水平） 。利用2000-2014年期间43个国家的数据，我们发现一个国家在以自我为中心的特惠贸易协定网络中的总体中心地位与其与其他成员国的全球价值链参与呈正相关，这表明资源分配影响主导着市场替代效应。然而，在将优惠贸易协定网络分解为私有网络和公共网络后，我们发现一国在私有优惠贸易协定网络中的地位集中对其全球价值链参与产生负面影响。相比之下，一国在共同特惠贸易协定网络中的地位集中对其全球价值链参与有积极影响。此外，私有网络的中心化削弱了个体深度 PTA 对双边 GVC 参与的影响，而公共网络的中心化增强了个体深度 PTA 对双边 GVC 参与的影响。一系列测试证实了我们主要发现的稳健性。