中国专利代理服务网络的时空演化格局及影响因素
|
|
王俊松, 刘芷晴
|
Spatial and temporal evolutionary patterns and influencing factors of patent agency service networks in China
|
|
WANG Junsong, LIU Zhiqing
|
|
表5 负二项回归结果
|
Tab. 5 Negative binomial regression results
|
|
| (1) | (2) | (3) | (4) | (5) | | lnPGDPi | 6.446*** | 8.293*** | | | 12.901*** | | lnPGDPj | 13.495*** | 15.023*** | | | 4.051*** | | lnPopi | 8.452*** | 11.315*** | | | -0.062 | | lnPopj | 2.151*** | 3.382*** | | | 3.364*** | | Tech | 77.197*** | 118.483*** | | | 170.463*** | | Fdi | -20.468*** | -17.431*** | | | -24.535*** | | Finance | 9.757*** | 10.962*** | | | 5.612*** | | Hierachyi | 4.410*** | | 14.016*** | 22.795*** | 18.278*** | | Hierachyj | 1.468*** | | 7.067*** | 16.366*** | 13.887*** | | lnDist | | | | -2.822*** | -3.113*** | | Econgap | | | | -11.606*** | -11.899*** | | Cultprox | | | | 2.727*** | 3.583*** | | Instprox | | | | 42.884*** | 43.212*** | | 时间段固定效应 | Yes | Yes | Yes | Yes | Yes | | 服务城市所在区域固定效应 | Yes | Yes | Yes | Yes | Yes | | 被服务城市所在区域固定效应 | Yes | Yes | Yes | Yes | Yes | | 观测值 | 24315 | 24315 | 24322 | 24322 | 24315 | | chi2 | 9917 | 9812 | 8219 | 21267 | 23393 | | Prob > Chi2 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | | Log Likelihood | -86125 | -86177 | -85151 | -80471 | -79387 |
|
|
|