Research Article

Grandparental Childcare and Second Birth in China: Evidence from a Dynamic Model and Empirical Study

Table 1

Descriptive statistics of the used sample, which is a subset of the CMDS2016. For variables with binary values, the mean indicates the proportion of the positive class.

TypeVariableDescriptionFull sampleHousehold (two births)Household (one birth)
MeanS.D.MeanS.D.MeanS.D.

ExplainedHaving the second birthYes0.4430.4971000
DemographicAge of the fatherContinuous (years)34.4945.10235.2614.87533.8825.195
Age of the motherContinuous (years)32.6805.09833.4454.92232.0715.153
Ethnicity of the parentsBoth Hans0.9030.2960.8850.3190.9180.275
Age of the first childContinuous (years)8.7704.37210.2554.1157.5884.207
Gender of the first childGirl0.4660.4990.5770.4940.3770.485
Primal-care provider for the first childParents0.5320.4990.5070.5000.5510.497
Father0.0070.0860.0060.0780.0080.091
Mother0.1960.3970.1860.0060.2030.402
Grandparents0.2330.4230.2670.4420.2060.404
Other caretakers0.0280.1650.0280.1650.0280.166
Nobody0.0040.0650.0050.0720.0040.060

SocioeconomicEducation level of the fatherJunior school and below0.0830.2760.1180.3230.0550.228
Junior high school0.5660.4960.6270.4840.5180.500
Senior high school0.2330.4230.1930.3950.2650.441
College and above0.1170.3220.0610.2390.1620.369
Education level of the motherJunior school and below0.1180.3220.1730.3780.0740.261
Junior high school0.5690.4950.6190.4860.5300.499
Senior high school0.2140.4100.1620.3690.2550.436
College and above0.0990.2990.0460.2090.1420.349
Family monthly incomeContinuous (in log)8.7630.5368.7420.5568.7790.519
Settlement intentionSettle down0.6220.4850.5970.4910.6420.480
Return home0.0450.2070.0470.2110.0430.203
Go to other places0.0280.1640.0280.1640.0280.164
Uncertain0.3060.4610.3280.4700.2880.453
Household registration (a.k.a Hukou) of the parentsBoth rural Hukous0.8330.3730.8910.3110.7860.410
Different Hukou types0.0750.2640.0530.2240.0930.290
Both urban Hukous0.0920.2890.0550.2290.1210.326
The child migrates with their parentsYes0.5120.5000.5400.4980.4900.500
The respondent participates in labor forceYes0.8480.3590.8350.3710.8580.350

S.D.: standard deviation. A hypothesis test is conducted to identify the difference between the means of the two-birth household group and one-birth household group. , , and denote significance levels of 10%, 5%, and 1%, respectively.