Income Differences between Flexibly and Nonflexibly Employed Persons and Their Deconstruction: An Analysis Based on Data from the 2018 China Mobility Monitor

Table 5

Test results for equilibrium conditions, Methods 1 and Method 2.

Variables	Sample	Variable mean		% bias	% Reduce |bias|	t-test
		Experimental group	Control group			t	> |t|
Age
Gender	Before matching	0.593	0.539	10.900		19.120	0.000
	After matching	0.593	0.593	0.000	100.000	−0.010	0.995
30 years and under	Before matching	0.223	0.429	−45.200		−78.530	0.000
	After matching	0.223	0.223	0.000	100.000	−0.010	0.994
31–50 years	Before matching	0.674	0.513	33.200		57.960	0.000
	After matching	0.674	0.674	0.000	99.900	−0.030	0.974
50+ years	Before matching	0.104	0.058	16.900		30.140	0.000
	After matching	0.104	0.103	0.000	99.800	0.060	0.953
Area of work
East	Before matching	0.375	0.558	−37.300		−65.290	0.000
	After matching	0.375	0.375	0.000	100.000	−0.020	0.985
Central	Before matching	0.230	0.158	18.300		32.390	0.000
	After matching	0.230	0.230	0.000	100.000	−0.010	0.994
West	Before matching	0.337	0.231	23.600		41.590	0.000
	After matching	0.337	0.337	0.000	99.900	0.020	0.985
North east	Before matching	0.059	0.053	2.300		3.960	0.000
	After matching	0.059	0.059	0.000	99.700	0.010	0.990
Marital status
Single	Before matching	0.094	0.276	−48.300		−82.940	0.000
	After matching	0.094	0.094	0.000	100.000	0.010	0.992
Nonsingle	Before matching	0.906	0.724	48.300		82.940	0.000
	After matching	0.906	0.906	0.000	100.000	−0.010	0.992
Years of current flow
10 years and below	Before matching	0.713	0.829	−27.800		−49.320	0.000
	After matching	0.713	0.713	0.000	100.000	0.010	0.995
Over 10 years	Before matching	0.287	0.171	27.800		49.320	0.000
	After matching	0.287	0.287	0.000	100.000	−0.010	0.995
Education level
Below lower secondary	Before matching	0.188	0.099	25.800		45.990	0.000
	After matching	0.188	0.188	0.000	100.000	0.010	0.994
Lower secondary and post-secondary	Before matching	0.721	0.601	25.600		44.720	0.000
	After matching	0.721	0.721	0.000	100.000	−0.010	0.989
Tertiary and above	Before matching	0.090	0.300	−55.000		−94.190	0.000
	After matching	0.090	0.090	0.000	100.000	0.010	0.992
Industry
Primary industry	Before matching	0.033	0.010	15.800		28.610	0.000
	After matching	0.033	0.032	1.000	93.900	1.310	0.189
Secondary industry	Before matching	0.115	0.383	−65.400		−112.300	0.000
	After matching	0.115	0.115	0.000	100.000	0.030	0.977
Tertiary industry	Before matching	0.852	0.606	57.500		99.220	0.000
	After matching	0.852	0.853	−0.300	99.400	−0.690	0.493