Table 8.

Robustness test of related variables.

Variables		Coef	Ordinary standard error (Robust standard error)
Dependent variable	Choice of returning home		z	p
Control variables	Gender	0.668	2.290(2.230)	0.022(0.026)
	Marital status	0.122	0.500(0.409)	0.619(0.624)
	Annual household income	0.271	2.200(2.200)	0.068(0.069)
	Study abroad duration	0.038	0.430(0.410)	0.667(0.679)
Independent variables	Protective supplies reserve	−0.314	−1.980(−1.830)	0.047(0.068)
	Daily necessities supply	0.397	2.680(2.620)	0.007(0.009)
	Collective life risk	0.028	0.220(0.230)	0.8250.822)
	Outgoing purchasing risk	0.167	1.130(1.310)	0.259(0.191)
	Foreign prevention and control policies	0.511	3.580(3.370)	0.000(0.001)
	China's prevention and control policies	0.079	0.550(0.570)	0.581(0.566)
	Embassy assistance	−0.146	−1.050(−1.180)	0.292(0.237)
	Transportation expenses	−0.492	−4.250(−4.890)	0.000(0.000)
	Return time cost	−0.153	−1.160(−1.200)	0.245(0.229)
	Isolation fee	−0.346	−2.690(−2.510)	0.007(0.012)
	Academic research progress	−0.084	−0.670(−0.730)	0.506(0.464)
	Graduation and job hunting	0.501	4.220(4.030)	0.000(0.000)
	Mentor's requirements and suggestions	−0.051	−0.560(−0.620)	0.576(0.535)
	_cons	−5.109	−5.030(−4.900)	0.000(0.000)
Control variables	Gender	0.556	1.990(1.950)	0.047(0.049)
	Marital status	0.077	0.320(0.310)	0.747(0.754)
	Annual household income	0.342	2.890(2.690)	0.066(0.067)
	Study abroad duration	0.029	0.340(0.320)	0.733(0.748)
Dimensions	Survival rationality	0.328	2.590(2.620)	0.01(0.009)
	Economic rationality	−1.036	−7.830(−8.620)	0.000(0.000)
	Institutional rationality	0.374	2.580(2.620)	0.01(0.009)
	Development rationality	0.284	2.080(2.140)	0.037(0.033)
	_cons	−4.461	−4.840(−4.830)	0.000(0.000)

In brackets are the values after the robustness test.