bet365 Play online games Under the added value accounting framework，Break the value of the product based on the principle of value source and value absorption，Explanation of "Trade -the Mystery of Economic linkage"，Experience Research Discovery，The value -added trade has a significant positive promotion effect on economic linkage，But the non -symmetry is manifested in the rotary axis country and the spoke country，The country plays the "hub role"。Analysis of the clustering subunition shows，Against subtrama and added value trade are complementary，When bilateral countries belong to the same child,，The impact of the value -added trade intensity on economic linkage is strong。my country's implementation of non -balanced opening strategies，Actively promote the value -added connection with the state of the axis.，Use the correlation effect of the growth of the economy，Convergence that can achieve growth to high -income economies。At the same time，Use the advantages of the core node of the "Belt and Road" trade network，Continue to promote the construction of the “Belt and Road”，Provide more channels for countries along the route to integrate into the global added value division of labor，Build a win -win cooperation、Global economy ecology of linked development。

Keywords:Added value trade  Rolling State  State -spoke country  Condensing subunions  Economic linkage

Author Yang Jijun，Professor of International School of International Economics and Trade at Nanjing University of Finance and Economics (Nanjing  210046)。