| Industrial Isomorphism is the objective phenomenon of NZY-region. At present, the academic ideal about the problem of Industrial Isomorphism problem has been divided. Some scholars believe that the "duplication","homogeneous competition," resulting in a regional industrial isomorphism, exacerbating the internal friction of competition within the region, hindering regional economic integration and sustainable regional economic development. In this respect, a clear understanding of the nature of industry isomorphism problem of NZY-region, and provide a scientific basis for making decision about the industrial development direction of the NZY-region, is a major problem need to be solve.This paper first reviews the literature of industrial isomorphism to identify the measurement method of industrial isomorphism, then careful calculate and in-depth analyze the industrial isomorphic situation of manufacturing sector of NZY-region to draw a more comprehensive conclusion. Meanwhile, filter factors affecting manufacturing isomorphism in combination the results of previous studies. Subsequently, the article raised a number of assumptions based on the above factors for Metrology and Inspection, use industrial structure similarity coefficient for explanatory variable, select the appropriate statistical indicators to characterize the above factors and use them as explanatory variables, analyze panel data. inspect the long-term equilibrium relationship of the above-mentioned influencing factors. and pointed out the strength and direction of these various factors affect the strength, to determine the causes of manufacturing isomorphic of NZY-region. Finally, analyze the findings on the basis of empirical analysis and put forward appropriate policy recommendations.Through the industrial structure similarity coefficient and regional entropy analysis, we found NZY-region exist a more serious industrial isomorphism. However, this study on NZY-region typical industrial,chemical raw materials and chemical, found NZY-region in the level of industrial products, in fact, there is a big difference, there is no serious competition in the homogeneous production of Nanjing, Zhenjiang and Yangzhou, respectively, they have the advantage of product and the yield is relatively stable. If one city showing the expansion of certain types of product yield, the other two municipalities did not have a corresponding increase in production, and even competitors exit the industry situation, showing a good state of collaboration. By analyzing, author consider the industry isomorphism can coexist with the industrial division, namely from the traditional division of labor between sectors to the division of labor between products within the sector. What NZY-region undergoing is the division of labor between products within the sector, the isomorphic demonstrated is largely a manifestation of industrial agglomeration.Econometric Analysis of the factors of industrial Isomorphism of the NZY-region illustrates the higher isomorphic degree of NZY-region region is due to being a similar level of economic development, and facing similar international market demand. The natural conditions, cultural and historical backgrounds, cultural traditions, elements of police, and economic development of the initial conditions and constraints of NZY-region are extremely similar, hence, it’s not surprising that they have similar industrial structure. |