航空和高铁对中国城市创新能力的影响
|
|
罗雪, 毛炜圣, 王帮娟, 刘承良
|
The impacts of aviation and high-speed rail on urban innovation capacity in China
|
|
LUO Xue, MAO Weisheng, WANG Bangjuan, LIU Chengliang
|
|
表2 基准回归模型
|
Tab.2 Benchmark regression model
|
|
| 变量 | 模型1 | 模型2 | | Air | 0.0749*** | 0.0708*** | | (0.0193) | (0.0192) | | HSR | 0.2330*** | 0.2192*** | | (0.0359) | (0.0329) | | 控制变量 | | | | Population-S | | 6872.3180* | | | (3558.8330) | | Tech-spending | | 8614.6720** | | | (4267.8250) | | Population-Q | | 1267.1640** | | | (413.3714) | | 个体固定效应 | Yes | Yes | | 时间固定效应 | Yes | Yes | | R2 | 0.5123 | 0.5337 | | 样本量 | 3466 | 3466 |
|
|
|