| (1) | (2) | (3) | (4) | (5) |
| lnict | lnict | lnict | lnict | lnict |
IN设施互通 | −4.040*** (0.567) |
|
|
|
|
ET电子传输 |
| −29.179*** (5.911) |
|
|
|
PS支付体系 |
|
| −13.304*** (4.596) |
|
|
IPRS知识产权 |
|
|
| −12.805 (9.875) |
|
OT其他限制 |
|
|
|
| −10.631*** (2.064) |
控制变量 | YES | YES | YES | YES | YES |
时间/地区控制效应 | YES | YES | YES | YES | YES |
_cons | −4.734* (2.586) | −3.990 (2.675) | −3.445 (2.733) | −3.222 (2.759) | −6.891** (2.762) |
观测值 | 392 | 392 | 392 | 392 | 392 |
r2 | 0.206 | 0.148 | 0.109 | 0.091 | 0.153 |
r2_a | 0.079 | 0.011 | −0.034 | −0.055 | 0.017 |