Research on the Influencing Mechanism of Data Capital on Farmers’ Income

Table 7

Robustness test.

Variable	Substitution variable		Narrow the sample
	(1)	(2)	(3)	(4)
Data capital	0.026 (6.87)	0.012 (3.09)	0.028 (6.55)	0.021 (4.57)
Gender		0.0417		0.0423
Age		−0.0416		−0.0829
Nature of the work		−0.0464		−0.0582
Relative income level		0.0287		0.0250
Family size		0.0317		0.0235
Marital status		0.0111		0.0135
Constant term	4.77	2.22	0.0198	0.0253
Sample size	14215	14215	9239	9239
R^2	0.0166	0.0818	0.0229	0.0699
F	47.25	27.6	42.95	15.23