variable

mode1

model2

mode3

model4

model5

model6

model7

model8

inds

19.839***

20.291***

18.697**

19.051***

17.562**

16.435***

14.382***

10.471*

1.134

0.989

1.208

0.879

1.037

1.112

1.544

2.675

income

1.658***

1.711***

1.766**

1.806***

1.823***

1.654 ***

1.874***

0.154

0.108

0.148

0.170

0.162

0.159

2.145

traf

0.036***

0.078***

0.054***

0.063***

0.069***

0.087**

0.026

0.025

0.025

0.025

0.027

0.046

rtt

−8.054***

−6.857***

−5.679***

−7.473***

−10.076***

11.046

10.989

12.866

10.967

20.354

medi

0.252***

0.238***

0.234***

0.445**

−0.036

−0.045

0.043

−0.857

hp

0.116**

0.143***

0.285***

−0.048

−0.067

−1.324

R2

0.805

0.826

0.835

0.841

0.865

0.905

0.864

0.835

Model

SEPDM

SEPDM

SEPDM

SEPDM

SEPDM

SEPDM

OLS

BE