bet365 live casino games Trade protection is always accompanied by economic fluctuations and spread，Pingzhi's economic fluctuations have become an important way to suppress trade protection，The interest association formed by the global value chain (GVC) has caused GVC to reduce the role of global economic fluctuations, which has attracted much attention。The optimal tariff model based on economic fluctuation parameters，Explore the inhibitory effect of GVC embedded from the perspective of economic fluctuations and conducts empirical inspection，It can be discovered: GVC embedded in inhibitory effects on trade protection，Ping Economic fluctuation is an important mechanism for GVC embedding to inhibit trade protection，and GVC's GVC embedded in the GVC -leading country has a suppressive effect on trade protection through flat -depying economic fluctuations，and the GVC follow -up country is not significant for suppressing trade protection through this mechanism，It may even exacerbate economic instability，Causes trade protection。With the improvement of the GVC leading ability of a country，GVC embedded through flat economic fluctuations，The role of inhibiting trade protection is gradually obvious。

　　Keywords:Global Value Chain embedded in economic volatility protection best tariff model

　　AuthorTang Yihong，Professor of International School of International Economics and Trade at the University of International Economics and Trade (Beijing 100029); Zhang Pengyang，Lecturer of the School of Economics and Management of Beijing University of Technology (Beijing 100124)。