变量

(1)

(2)

(3)

(4)

(5)

(6)

数字经济

−0.9758***

−2.2846***

−1.5642***

−1.8110***

−1.0108***

−1.2272***

(0.0885)

(0.1802)

(0.3042)

(0.3189)

(0.3162)

(0.3225)

数字经济平方项

1.8513***

1.3826***

1.5216***

0.7122**

0.8684***

(0.2304)

(0.2777)

(0.2810)

(0.2854)

(0.2876)

经济发展水平

−0.0194***

−0.0184***

−0.0106*

−0.0077

(0.0067)

(0.0066)

(0.0062)

(0.0062)

科技水平

0.0247**

0.0224**

0.0273***

(0.0106)

(0.0097)

(0.0097)

人力资本水平

−0.1469***

−0.1353***

(0.0228)

(0.0229)

对外开放程度

−0.0002***

(0.0001)

_cons

0.4465***

0.5658***

0.6003***

0.5681***

0.7562***

0.7297***

(0.0137)

(0.0190)

(0.0221)

(0.0259)

(0.0376)

(0.0384)

时间/区域固定效应

yes

yes

yes

yes

yes

yes

样本量

232

232

232

232

232

232