Table 2 Descriptive statistics of the variables

Explained variable

0.290

0.323

0.263

Age

36.23

36.382

36.082

Female

0.440

0.422

0.449

Ethnicity

0.070

0.049

0.094

Marriage status

0.850

0.862

0.838

Education

3.070

3.126

3.006

Hukou

0.900

0.897

0.907

Income

8.700

8.711

8.691

Nature of work unit

2.660

2.613

2.704

Employment status

1.890

1.922

1.865

Industry

1.460

1.534

1.383

Occupation type

1.990

1.996

1.989

Length of migration

6.000

6.149

5.842

Reason for migration

0.950

0.940

0.959