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| The Influence of Scientific and Technological Innovation and Learning Effect in Central Cities on Regional Common Prosperity |
| Li Hongtao,Wang Lili |
| (Department of Humanities and Social Sciences, Dalian University of Technology, Dalian 116024, China) |
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Abstract The significance of the leading role of central cities and urban agglomerations is highly stressed in China. It is the key to achieving common regional prosperity in the new era by promoting the balance of regional development in the form of central cities and urban agglomerations. However, due to the endogenous and external influences of scientific and technological innovation on economic growth, the agglomeration-diffusion effect acts on regional economic development at the same time, making it difficult for the central city's scientific and technological innovation to promote the common prosperity of the regional development gap convergence.#br# The scientific and technological innovation of the central city mainly plays a leading role in the cities with the learning effect, that is, other large, medium and small cities in the region with the learning effect can receive the influence of the radiation diffusion effect of the central city's scientific and technological innovation. The path selection of the diffusion effect formed by technological innovation in the central city should be considered. Therefore, the model framework of evolutionary economic geography theory is introduced and the mechanism of central city technological innovation promoting regional common prosperity is analyzed from the perspective of dynamic evolution.#br#In the theoretical analysis, due to the objective existence of central city agglomeration-diffusion effects in the process of central city and regional development, cities will experience increasing returns to scale in the early stage of development, constant returns to scale in the mature stage of development, and constant returns to scale in the later stage of development. The returns to scale exhibit a decreasing nonlinear dynamic evolution, and the development of cities is also restricted by competition from other cities and objective resource endowments. On the basis of the theory of evolutionary economic geography, the study introduces the ecological logistic curve model, and establishes a common prosperity model between cities including the dynamic changes of agglomeration-diffusion effects through mathematical models, so as to integrate the endogenous and external problems of technological innovation in economic growth and it builds a unified analysis model to realize the analysis of the impact mechanism of technological innovation in central cities on regional common prosperity on the conditions of inter-city exchange competition and resource endowment constraints. Through mathematical model derivation and theoretical analysis, the study puts forward two research hypotheses: first, the central city has a leading role in both dimensions of technological innovation and learning effect, and by strengthening the technological innovation and learning effect of the central city, it can promote regional common prosperity; second, the spatial spillover effect of scientific and technological innovation exists in the path selection of location elements, and tends to form a spillover effect to regions with more economic scale, market scale and learning ability.#br#In the empirical analysis, the study takes the 19 largest urban agglomerations in China as the research object, establishes panel data from 2007 to 2020, and verifies the research hypothesis through fixed effects, endogenous tests, counterfactual estimation, and spatial econometric models. The research has found that the technological innovation and learning effect of the central city can significantly promote the common prosperity of the region. Among them, the improvement of central cities through scientific and technological innovation can play a role in promoting the economic growth of other cities in the urban agglomeration, and the expansion of the learning ability and market scale of central cities is conducive to narrowing the income gap between cities in the urban agglomeration. Second, scientific and technological innovation in central cities mainly forms spatial spillover effects through the economic connection and learning ability between cities.It is concluded that central city technological innovation can significantly promote the narrowing of urban agglomeration development gaps and achieve regional common prosperity. Meanwhile there is a path choice for the spatial spillover effect of scientific and technological innovation in the central city. The main path is the economic connection and learning ability between cities to form a driving effect on other large, medium and small cities in the urban agglomeration. Therefore, it is essential to expand the spatial pattern of mutual integration between cities, and enhance the coordinated development of scientific and technological innovation in urban agglomerations for the high-quality development of large, medium and small urban agglomerations.#br#
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Received: 06 July 2022
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