| 高铁通车对中国城市创业投资网络的影响——基于跨城市创业投资事件的实证研究 |
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| 引用本文： | 庄德林,刘雨晨,王帅.高铁通车对中国城市创业投资网络的影响——基于跨城市创业投资事件的实证研究[J].地理科学进展,2021,40(10):1626-1638. |
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| 作者姓名： | 庄德林 刘雨晨 王帅 |
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| 作者单位： | 合肥工业大学经济学院,合肥 230601 |
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| 基金项目： | 国家社会科学基金项目(15BGL210);安徽省社会科学创新发展研究课题重大项目(2019ZD007);合肥工业大学习近平新时代中国特色社会主义思想研究院专项招标课题(JS2018HGXJ0145) |
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| 摘 要： | 为探究高铁通车对中国城市创业投资网络的影响,论文以2001—2017年间投资于中国大陆的41692件跨城市创业投资事件为样本,研究高铁通车对城市创业投资网络集聚力、辐射力和联系中介力的影响,并进一步探讨其作用机制。渐进双重差分模型(渐进DID模型)分析表明,高铁通车可以提高城市可达性,降低创业投资活动主体的综合交易成本,促进创新创业要素资源跨区流动,对创业投资网络集聚力、辐射力和联系中介力产生正向影响。中心城市的创业投资网络受高铁通车带来的正向影响更强。同时,高铁通车对创业投资网络最优作用范围依投资中心呈环形分布,投资中心辐射半径100~200 km的地区,创业投资网络集聚力、辐射力和联系中介力受高铁通车正向影响要明显强于100 km以内和200 km以外地区。此外,风险性低、回报稳定和市场化程度更高的扩张期和成熟期阶段的创业投资网络集聚力、辐射力和联系中介力受高铁通车影响较种子期和初创期阶段更为显著。
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| 关 键 词： | 创业投资网络 高铁通车 渐进DID模型 社会网络分析 中国 |
| 收稿时间： | 2020-12-09 |
| 修稿时间： | 2021-06-23 |
Impact of high-speed railway on Chinese urban venture capital network:Empirical study based on cross-city venture capital events |
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| ZHUANG Delin,LIU Yuchen,WANG Shuai.Impact of high-speed railway on Chinese urban venture capital network:Empirical study based on cross-city venture capital events[J].Progress in Geography,2021,40(10):1626-1638. |
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| Authors: | ZHUANG Delin LIU Yuchen WANG Shuai |
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| Institution: | School of Economics, Hefei University of Technology, Hefei 230601, China |
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| Abstract: | Based on the 41692 venture capital investment events in China's mainland from 2001 to 2017, the impact of high-speed railway on the agglomeration, radiation, and intermediary powers of Chinese venture capital network was studied by using the social network analysis model, as well as the heterogeneity of the effect of different city types, radiation radius of the central cities, and four investment stages, in order to research the impact of high-speed railway on Chinese urban venture capital network. The analysis of the time-varying Difference-in-Differences (DID) model shows that high-speed railway can improve the accessibility of cities, reduce the transaction cost of venture capital activities, promote the cross-regional flow of innovation resources, and enhance the abundance of urban innovation elements, thus having a positive impact on the venture capital network development. High-speed railways have a significant promoting effect on the city network of venture capital in both non-central cities and central cities, and the positive effect is stronger in central cities. The impact of high-speed railway on venture capital network is different under different distance scales: the influence is significantly weaker in areas within a radius of 100 km and beyond 200 km than that between 100 km and 200 km. The impact of high-speed railway on the agglomeration power, radiation power, and intermediary power of venture capital network in the expansion and maturity stages (with lower risk, stable return, and higher marketization degree) is clearly more significant than in the seed stage and initial stage. |
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| Keywords: | venture capital network high-speed railway time-varying DID model social network analysis China |
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