| 变量 | 模型1 | 模型2 | 模型3 | 模型4 |
|---|---|---|---|---|
| 互惠效应 | ||||
| Mutual | 1.3167*** | 1.2666*** | 0.8772*** | |
| (0.1794) | (0.1523) | (0.2016) | ||
| 结构依赖效应 | ||||
| Popularity | -2.3853*** | -1.8486*** | ||
| (0.1217) | (0.1275) | |||
| Activity | -1.5993* | -1.1895* | ||
| (0.1808) | (0.2342) | |||
| Transitivity | -0.1531*** | -0.0699*** | ||
| (0.0182) | (0.0148) | |||
| Cyclicity | 0.8080*** | 0.5442*** | ||
| (0.0337) | (0.0350) | |||
| 时间依赖效应 | ||||
| Stability | 1.9076*** | |||
| (0.0235) | ||||
| Variability | -3.8152*** | |||
| (0.0479) | ||||
| 趋同效应 | ||||
| Economy | 0.6869*** | 0.6288*** | 0.2092** | -0.0072 |
| (0.0713) | (0.0697) | (0.0676) | (0.0695) | |
| Governance | -0.3974*** | -0.3925*** | -0.3658*** | 0.2762* |
| (0.0320) | (0.0302) | (0.0250) | (0.0546) | |
| Infrastructure | -0.1088* | -0.1023* | -0.2378*** | -0.2131*** |
| (0.0677) | (0.0613) | (0.0659) | (0.0626) | |
| 发出效应 | ||||
| Production-H | 0.0003*** | 0.0003*** | 0.0002*** | 0.0001*** |
| (0.0000) | (0.0000) | (0.0000) | (0.0000) | |
| 接收效应 | ||||
| Consumption-H | 0.0004*** | 0.0004*** | 0.0003* | 0.0002* |
| (0.0000) | (0.0000) | (0.0000) | (0.0000) | |
| 外部网络效应 | ||||
| Distance | -0.0002*** | -0.0002*** | -0.0002*** | -0.0001*** |
| (0.0000) | (0.0000) | (0.0000) | (0.0000) | |
| Price | 0.0804* | 0.0764 | 0.0102 | 0.0139 |
| (0.3826) | (0.3436) | (0.3092) | (0.5280) | |
| Voting | 0.6558*** | 0.6472*** | 0.8077*** | 0.9145** |
| (0.0211) | (0.0206) | (0.0136) | (0.0186) | |
| Edges | -4.1514*** | -4.2472*** | -2.9719*** | -2.1012*** |
| (0.1372) | (0.1263) | (0.1397) | (0.2128) | |
| Num.obs. | 107310 | 107310 | 107310 | 85848 |
