项目

变量

SDM

SAR

SEM

面板Tobit

各变量系数值

exclim

−0.0483^***

(0.0107)

−0.0516^***

(0.0113)

−0.0368^***

(0.0106)

−0.0845^***

(0.0141)

city

−0.0013^***

(0.0005)

−0.0005

(0.0004)

−0.0018^***

(0.0004)

0.0001

(0.0007)

lngdp

0.0091

(0.0136)

−0.0183

(0.0129)

0.0220^*

(0.0132)

−0.0258

(0.0187)

invest

−0.2685^**

(0.1081)

−0.0458

(0.0985)

−0.2551^**

(0.1066)

0.2433^*

(0.1421)

edu

−0.0136^**

(0.0053)

0.0004

(0.0051)

−0.0125^**

(0.0050)

0.0144^**

(0.0070)

−cons

0.6006^***

(0.1691)

var(e.Y)

0.0029^***

(0.0003)

Log-likelihood

574.0172

467.45013

rho

0.6268^***

(0.0577)

0.7205^***

(0.0501)

sigma2_e

0.0013^***

(0.0001)

0.0015^***

(0.0001)

0.0014^***

(0.0001)

lambda

0.7833^***

(0.0423)

N

310

310

310

310