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Regional Integration and Innovation Quality of Enterprises: Evidence from the Enlargement of the Yangtze River Delta Urban Agglomeration |
Wu Qingshan1,Wu Yuming1,Cai Huijie2 |
(1.School of Business ,East China University of Science and Technology,Shanghai 200237,China;2.Contemporary Jiangxi Magazine of CPC Jiangxi Provincial Committee,Nanchang 330006,China) |
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Abstract Regional integration is an important institutional design for coordinated regional development, and it is also a source of vitality for promoting high-quality economic development. Urban agglomerations are becoming the main spatial carriers for the allocation of regional factor resources, important hubs for smooth scientific and technological innovation activities and knowledge spillovers, and core carriers for promoting regional coordinated development and high-quality development. Regarding the policy effects of regional integration, existing research focuses more on economic development, environmental pollution and employment, and less literature deals with the impact of regional integration policies on micro-enterprises. Therefore, this study aims to deeply explore the impact of regional integration on the quality of enterprise innovation and its underlying mechanism.#br#Regional integration is expected to achieve the free flow of factors, resource sharing and industrial division of labor in the region through market mechanisms and government means, so as to form the integration of market resources across administrative regions. The expansion of urban agglomeration is a dynamic change from a typical fragmented "administrative region economy"to an integrated "urban agglomeration economy". After expansion, new entrants enjoy policy conveniences such as reduced transaction costs and strengthened economic ties within the urban agglomeration, and achieve corresponding policy dividends, thus forming the boundary effect of urban agglomeration between newly entered cities and peripheral cities. This paper selects the quasi-natural experiment of the expansion of the Yangtze River Delta urban agglomeration in 2010, adopts an sharp geographic regression discontinuity, and identifies the quality effect of enterprise innovation brought by regional integration by comparing the changes in the quality of enterprise innovation in expanding cities and marginal cities.#br#This paper has the following marginal contributions. First, in terms of research content, it focuses on the quality of corporate innovation rather than the quantity of innovation, which not only enriches the research perspective of corporate innovation, but also broadens the micro perspective of regional integration policy evaluation. Second, in terms of identification strategies, the non-parametric estimation method of sharp geographic regression discontinuity is adopted to identify the causal relationship between regional integration and the quality of enterprise innovation, that is, the jump effect brought by the exogenous impact of urban agglomeration expansion policies. The dual differences in the spatial and temporal dimensions of corporate innovation quality between new entrants and peripheral cities can reduce the endogenous estimation bias; thirdly, in terms of mechanism paths, it explores regional integration from the perspectives of corporate cost mechanism and demand mechanism. It will help promote a better combination of efficient markets and promising governments by clarifying the micro-mechanisms that affect the quality of enterprise innovation.#br#It is confirmed that regional integration construction has significantly improved the quality of enterprise innovation in expanding cities, and after a series of robustness tests, this conclusion is still valid. There is a firm heterogeneity effect of regional integration on innovation quality of enterprises, with more significant positive effect on enterprises that have long established, strong growth capacity and large scale. The mechanism test shows that reducing business costs and increasing business demand are the main paths to play the role of regional integration.#br#Finally, this paper puts forward policy suggestions to promote the regional integrated development of urban agglomerations and improve the quality of enterprise innovation. The first is to promote the coordinated development of new cities and in situ cities within the urban agglomeration. Second, it is essential to focus on building regional integration to effectively reduce corporate costs and release corporate market demand space. Last but not the least, it is important to promote the construction of a unified national market with regional market integration. The key is to break the vicious cycle of protectionism and administrative barriers, i.e. break the small circle or internal circle in each region, and comprehensively clean up the policy barriers that prevent foreign enterprises from entering the local market.#br#
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Received: 13 January 2022
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