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| Threshold Effect of Environmental Heterogeneity on the Innovation Performance of the Yangtze River Economic Belt |
| Zhang Jianqing1,2,3, Yu Haichao1,2, Fan Fei1,2, Tian Jing1,2 |
1. Institute of Regional and Urban-Rural Development,Wuhan University,Wuhan 430072,China;
2. Institute Development of Central China,Wuhan University,Wuhan 430072,China;
3. Economics and Management School,Wuhan University,Wuhan 430072,China |
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Abstract Green development and innovative driven is of great significance to promote high-quality development of the Yangtze River Economic Belt.This paper uses the improved DEA model to measure the innovation performance of 108 cities along the Yangtze River Economic Belt from 2004 to 2017,using the panel threshold model to explore the impact mechanism of environmental heterogeneity factors such as urban pollution emissions (EP),environmental governance (GE),human environment settlement (RE) on innovation performance.The results show as follows.①During the study period,the innovation performance of cities in the upper,middle,and lower reaches of the Yangtze River Economic Belt has been steadily improved in the fluctuation as a whole,and has a large regional spatial imbalance.②The impact of pollution emissions on the innovation performance of cities along the line shows a significant double-threshold characteristic.After crossing the second threshold,pollution emissions have a certain inhibitory effect on the innovation performance of cities along the route.③The positive double threshold impact of environmental governance on innovation performance increases with the increase of urban per capita GDP,while the positive single threshold impact of human environment settlements decreases with the increase of urban per capita GDP.
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Received: 05 June 2020
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2021, Vol. 2 
