Provided fundamental compliance. Aerial view of the permanent site of the International Financial Forum (IFF) located at the tip of Hengli Island in Nansha New Area, Guangzhou. Marx and Engels provided a preliminary explanation of the essence and operational mechanisms of the world market, economic globalization, and international division of labor. Marx pointed out that the real task of bourgeois society is to establish a world market (at least a contour) and production based on this market. Lenin initially proposed the early ideas of socialist countries opening up to the outside world. He pointed out that "a socialist republic that is connected to different worlds cannot survive, and in the current situation, its own survival should be linked to the relationship between capitalism." Comrade Deng Xiaoping repeatedly emphasized that "building with closed doors is not feasible, and development cannot be achieved." This requires revitalizing the economy domestically and implementing an open policy to the outside world. Countries should "promote trade and investment liberalization and facilitation, and promote the construction of an open world economy".