经济发展水平较高地区

经济发展水平中等地区

经济发展水平较低地区

number1

number1

number1

score1

1.1291^***

−0.1052

0.004925

(4.6203)

(−0.5263)

(0.0446)

scale

6.1170^***

5.2578^**

8.0793^***

(5.6780)

(2.6282)

(5.2727)

economy

−0.000006756

0.00001173

−0.000004361

(−1.3557)

(0.5688)

(−0.3004)

research

0.0004686^***

0.002973^***

0.007163^***

(3.8133)

(3.9006)

(7.7108)

buy

−8.348e−07^*

0.00002140^***

0.000004869

(−1.8444)

(3.2753)

(0.8669)

_cons

9.3211^***

5.2610^***

5.5291^***

(14.3137)

(4.7407)

(8.2473)

N

98

88

89

R²

0.6047

0.6702

0.7620