Table 17.
Probit for Retention of Sibling Pairs, SRC Females
| Levels (1) | Levels (2) | Levels (3) | With Differences (4) | With Differences (5) | With Differences (6) | |
|---|---|---|---|---|---|---|
| Has bad health 86–91 (older sibling) | −0.0152 (0.121) | −0.0389 (0.237) | ||||
| Log Labor income, Age 25–34 older sibling | −0.00306 (0.0207) | −0.0272 (0.0269) | ||||
| High School grad (older sibling) | 0.124* (0.0738) | 0.214* (0.105) | ||||
| Health, Sibling difference | −0.0365 (0.211) | |||||
| Labor Income, Sibling difference | −0.0407 (0.0275) | |||||
| High School Grad sibling difference | 0.0221 (0.0958) | |||||
| Low Birth Weight | 0.114 (0.0783) | 0.0774 (0.0796) | 0.0266 (0.0871) | 0.0798 (0.105) | −0.0324 (0.108) | −0.160 (0.136) |
| Log Family income 0 to 16 | .0594 (0.0591) | 0.0739 (0.0565) | 0.0567 (0.0574) | 0.0266 (0.0635) | 0.0593 (0.0587) | 0.0275 (0.0616) |
| Low Birth Weight, Sibling difference | 0.0370 (0.0271) | 0.0480 (0.0270) | 0.0710* (0.0310) | |||
| Log Family Income 0 to 16 Sibling difference | 0.179 (0.171) | 0.273 (0.166) | 0.336 (0.178) | |||
| Mother’s Education (<12 years omitted) | ||||||
| =12 years | 0.00891 (0.0611) | 0.0282 (0.0620) | 0.00552 (0.0631) | −0.00793 (0.0646) | −0.00207 (0.0639) | −0.0374 (0.0679) |
| =13–15 years | 0.171* (0.0841) | 0.156 (0.0870) | 0.141 (0.0901) | 0.207** (0.0799) | 0.208* (0.0808) | 0.126 (0.0963) |
| =16 or more years | 0.288*** (0.0792) | 0.228* (0.0915) | 0.238** (0.0909) | 0.303*** (0.0684) | 0.229** (0.0824) | 0.217* (0.0870) |
| pseudo R-sq | 0.053 | 0.039 | 0.049 | 0.062 | 0.060 | 0.067 |
| Observations | 422 | 420 | 421 | 356 | 372 | 335 |
Notes: Marginal effects shown in table; for dummies shows discrete change of dummy variable from 0 to 1. Robust standard errors in parentheses.
*
p<0.05,
**
p<0.01,
***
p<0.001. Models also include age and age squared of older sib, birth order, whether mother married in 1968, Black. Hispanic cases dropped because all SRC Hispanic females exit. Sample of sibling pairs present in 1991 interview. Both siblings aged 16 or less in 1968. Has bad health is ever had bad health in 1986 to 1991, Individual education in 1991, Labor income average over ages 25 to 34. Income, labor income deflated to 2001 dollars. Sibling differences are in absolute values.