To build a unified market and promote the reform of market-based allocation of factors, we need to start from promoting the development of regional economic integration. The key is to breaking the local protectionism in the administrative area economy, organize economic activities according to the principles and laws of socialist market economy, and improve the efficiency of the allocation of regional resources and the ability to absorb global resources.To realize high-quality integrated development of the Yangtze River Delta, we should first encourage and support the integration of regional market:It can lay a solid foundation for the regional integration of the Yangtze River Delta. Through the diffusion effect of industrial growth, the balanced development among regions can be achieved. It can gradually aggregate the small-scale administrative area market which is in the state of division into a unified, open, net increased and orderly regional strong market. Based on the domestic market, it can absorb more global advanced resources and factors, and accelerate the development of domestic innovative economy. It can make the Yangtze River Delta break through the traditional mode of divided governance and enter a new stage of economic integration and collaborative governance.Based on the comprehensive analysis of the factors affecting the promotion of market integration and the effective experience of other countries, we should start from the following aspects to promote the regional integration of Yangtze River Delta in the administrative area economy:In the past, it advocated and encouraged the development of competition among local governments, but it also advocated and encouraged the coordinated development of cooperation among local governments. To promote market integration, we should start with specific projects in the region and implement them one by one. In promoting the integration of regional market, we should pay attention to the main role of enterprises, especially enterprise groups.
