Table 1 Variable Selection, Definition, and Assignment.

From: Analysing how government-provided vocational skills training affects migrant workers’ income: A study based on the Livelihood Capital Theory

Variable types

Variables

Symbol

Definition

Explained Variables

IL/year

Income (log)

Logarithmic value of the total amount of each type of income for the year

IS

Satsal

Satisfaction with income: 1 (very dissatisfied) to 5 (very satisfied)

Explanatory variables

GPVST

Tra

Participation in GPVST: yes = 1, no. = 0

dummy variable

time

Time

2016 = 0, 2018 = 1

Core explanatory variable

interaction term

Tra-time

GPVST multiplied by a time dummy variable

Control variables

sex

Sex

Male = 1, Female = 0

age

Age (log)

Logarithmic value of current year’s age

marriage

Marri

Married = 1, other = 0

household registration

Hukou

Local account = 1, foreign account = 0

mobility experience

Exp

Number of migrations

educational background

Edu

Duration of education

hours of work/year

Worktime(log)

Logarithmic value of working hours per year

working distance

workdistance

Geographic location of work: 1 (very near) to 5 (very far)

commuting time

Commute_time(log)

Logarithmic value of time (in minutes) spent on the road to and from work each day

type of industry

Indus

Whether engaged in the tertiary sector: yes = 1, no. = 0

number of years working

Work_time

Number of years worked

future settlement intentions

Willsett

Likelihood of future local settlement: 1 (very unlikely) to 5 (very likely)

social status perception

Status

Perceived level of social status: 1 (lowest) to 10 (highest)

sense of social justice

Fair

Fairness of current standard of living compared to work effort: 1 (not at all fair) ~ 5 (completely fair)