Abstract
Under the background of China's high-quality development, improving the ecological environment, enhancing the welfare level of residents and promoting the sustainable development of cities have become a hot issue of widespread concern in society. This paper focuses on the Yangtze River Delta region, aiming to study the direct incentive effect and spatial spillover effect of creating a national health city on the ecological welfare performance. It also further decomposes the spatial spillover effect, to study the path of spatial spillover and the characteristics of heterogeneity in different regions. The results show that (1) the ecological welfare performance in the Yangtze River Delta is increasing year by year, and the average growth rate was 0.23%. There is a spatial effect of "beggar-thy-neighbor." The improvement of local ecological welfare performance will reduce the performance level of the surrounding areas by more than 30%. (2) To create a national health city in local areas, the ecological welfare performance in local areas will be increased by 0.087%, and the ecological welfare performance in the surrounding areas will be increased by 0.031%. Among them, the ecological welfare performance of the surrounding national health cities will be increased by 0.067%, and the ecological welfare performance of the surrounding non-health cities will not be significantly improved. (3) The effect has heterogeneity in coastal and inland areas. In terms of direct incentive effect, coastal areas are more obvious than inland areas. In terms of spatial spillover effect, inland areas show more positive spatial spillover effect than coastal areas, whether in groups or within groups. This paper is the first time to study this issue, enhance the theory, and practice of ecological welfare performance.
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