The goal of the national strategy of high-quality integrated development in the Yangtze River Delta region is by means of transforming the development mode and reshaping the economic and geographical pattern, to make the Yangtze River Delta region a dynamic growth engine of China's development, a national pacesetter of high-quality development, a pioneer zone in basically achieving modernization, a demonstration zone of integrated regional development and a new highland for reform and opening-up in the new era. The high-quality integrated development in the Yangtze River Delta region should start from encouraging and supporting the market integration in the Yangtze River Delta region. The reasons are as follows: firstly, to turn the narrow and small-scale market into a large-scale regional market; secondly, to transform the development mode and mechanism of economic globalization; thirdly, to siphon the global advanced innovation factors to develop China's innovation economy; fourthly, to break through the traditional pattern of segmented governance and carry out collaborative governance with economic integration. The difficulty in promoting market integration in the Yangtze River Delta region lies in the innovation and construction of governance mechanisms for market integration. Accordingly, basing on the requirements of the development of the socialist market economy system, we should take the competition policy endogenous to the developed market economy system as a means and mechanism to promote high-quality integrated market development in the Yangtze River Delta region.
