two births in families with at least two children, to estimate the effect of additional children on parents' labor supply … differences in the ages of children whose birth was caused by the instruments. The estimates imply that the labor supply …

start age created by children's date of birth provides a natural experiment for estimation of the effect of age at school … can be derived for one cohort of students, to the 1980 Census, which contains educational attainment for the same cohort … of students. The results suggest that roughly 10 percent of students were constrained to stay in school by compulsory …

be responsible for poor health and low levels of schooling among the children of young mothers. This paper uses special … the effect of maternal age and single parenthood on children's disability status and school progress. Our results suggest … that there is little association between maternal age at birth and children's disabilities. But the children of teen …

special-need students, groups that charter critics have argued are typically under-served. The results show overall gains of 0 ….35 standard deviations in math and 0.12 standard deviations in reading for each year spent at KIPP Lynn. LEP students, special … education students, and those with low baseline scores benefit more from time spent at KIPP than do other students, with reading …

non-charter levels (that is, the average achievement level for urban non-charter students), and beyond non …

tried to integrate schools. Today, district-wide choice allows Boston and New York students to enroll far from home, perhaps …