Table 10 First-stage regression results for Internet use

County penetration

0.368***

(0.019)

Age

0.031***

(0.002)

Gender

0.042***

(0.006)

Education

0.032***

(0.002)

Exercise

0.004***

(0.001)

Household size

− 0.004*

(0.002)

Household income

0.041***

(0.003)

Urban

0.115***

(0.007)

Year

Yes

Province

Yes

Constant

− 0.688***

(0.047)

Observations

19,317

Kleibergen-Paap rk Wald F statistic

369.451

Kleibergen-Paap rk LM statistic

365.816