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. Author manuscript; available in PMC: 2016 Nov 1.
Published in final edited form as: Econ J (London). 2015 Nov 17;125(588):F347–F371. doi: 10.1111/ecoj.12291

Table 4.

Child Early Health Shocks and Parental Investment in Education

Dependent variable:
Education investment
in child i (log)
Education investment
in child j (log)
Difference in
Education investment

(1) (2) (3)
Early health shocks (i) −0.142
[0.131]
0.065
[0.124]
−0.204***
[0.047]
Early health shocks (j) 0.213
[0.130]
0.008
[0.123]
Birth weight: < 2 kg (i) 0.012
[0.115]
0.059
[0.110]
−0.015
[0.039]
Birth weight: 2 – 2.5 kg (i) 0.131
[0.094]
0.123
[0.089]
0.016
[0.031]
Birth weight: 2.5 – 3kg (i) 0.007
[0.086]
0.031
[0.081]
−0.013
[0.027]
Birth weight: < 2kg (j) −0.143
[0.117]
0.127
[0.111]
Birth weight: 2 – 2.5kg (j) −0.060
[0.091]
−0.045
[0.087]

Birth weight: 2.5 – 3kg (j) −0.098
[0.081]
−0.103
[0.077]
Male (i) −0.042
[0.055]
−0.014
[0.053]
−0.024
[0.018]
Male (j) 0.027
[0.055]
0.008
[0.053]
Age 0.083***
[0.010]
0.088***
[0.009]
Born at the first parity 0.042
[0.065]
0.041
[0.062]
Maternal age 0.014**
[0.006]
0.014**
[0.006]
Maternal ethnicity (Han=1) 0.090
[0.070]
0.111*
[0.066]
Maternal schooling years 0.038***
[0.010]
0.041***
[0.009]
Maternal working sector (public=1) 0.083
[0.099]
0.024
[0.094]
Rural −0.150**
[0.058]
−0.184***
[0.055]
Household asset 0.130***
[0.018]
0.124***
[0.017]
χ2 19.39 0.70
p-values 0.31 0.41
# Pair of twins 1,456 1,456 1,456

Note: Columns (1) and (2) report the OLS estimates; column (3) reports the within-twin fixed-effect estimates. Standard errors are in brackets;

*

significant at 10%;

**

significant at 5%;

***

significant at 1%.