(1)

(2)

(3)

(4)

(5)

Urban

0.048

0.028

−0.022

−0.020

−0.010

(0.042)

(0.040)

(0.042)

(0.043)

(0.038)

Work

0.135**

0.045

0.024

0.031

0.053

(0.063)

(0.062)

(0.055)

(0.056)

(0.057)

Inter

0.072

0.084

0.087

0.083

0.068

(0.066)

(0.060)

(0.056)

(0.056)

(0.060)

Male

0.194***

0.175***

0.157***

0.155***

0.145***

(0.054)

(0.052)

(0.052)

(0.051)

(0.049)

Primary school

−0.104

−0.096

−0.080

−0.084

−0.069

(0.117)

(0.103)

(0.079)

(0.077)

(0.082)

Junior high school

−0.113

−0.136

−0.130

−0.135*

−0.124

(0.114)

(0.100)

(0.076)

(0.075)

(0.081)

High school/secondary school/technical school/vocational high school

−0.054

−0.151

−0.120

−0.121

−0.097

(0.109)

(0.103)

(0.078)

(0.082)

(0.093)

College

0.148

0.013

0.040

0.041

0.067

(0.105)

(0.110)

(0.090)

(0.102)

(0.115)

Undergraduate

0.347**

0.207

0.239*

0.243

0.283*

(0.131)

(0.138)

(0.118)

(0.141)

(0.156)

Age

0.119***

0.112***

0.112***

0.112***

0.107***

(0.010)

(0.009)

(0.009)

(0.009)

(0.010)

Agesq/100

−0.144***

−0.134***

−0.134***

−0.132***

−0.125***

(0.013)

(0.012)

(0.012)

(0.013)

(0.014)

Health

0.048*

0.060**

0.072***

0.075***

0.072***

(0.023)

(0.024)

(0.022)

(0.022)

(0.022)

Married

−0.149

−0.112

−0.126

−0.127

−0.130

(0.091)

(0.082)

(0.078)

(0.078)

(0.079)

Intelligence

0.020

−0.023

−0.007

−0.001

−0.001

(0.051)

(0.051)

(0.052)

(0.054)

(0.053)

Promotion

0.206***

0.231***

0.232***

0.226***

(0.043)

(0.042)

(0.044)

(0.046)

Computer

0.107***

0.103***

0.101**

0.102**

(0.037)

(0.036)

(0.037)

(0.037)

Scale

0.037***

0.035***

0.031***

0.025**

(0.011)

(0.011)

(0.011)

(0.010)

Welfare

0.122***

0.107***

0.102***

0.103***