title: Sisters, siblings, and mothers:  the effect of teen-age childbearing on birth outcomes in a dynamic family context.
abstract: "In this paper, we formulate a statistical model of dynamic intrafamily investment behavior incorporating endowment heterogeneity and heritability.  We use the model's estimates to evaluate alternative estimation procedures that have exploited family and kinship data to obtain estimates of the determinants of human capital."  The sequential decision-making framework developed is applied to data on birthweight and gestation of children born to mothers surveyed in the U.S. National Survey of Labor Market Experience youth cohort.  "The empirical results imply that the least restrictive statistical formulation, consistent with dynamic behavior and heterogeneity among siblings, fits the data best.  All of the estimation procedures that control for a family-specific endowment indicate, however, that the biological effect of having a birth at younger ages is to marginally increase birthweight and to increase fetal growth."
authors.forename: M R
authors.initials: MR
authors.lastname: Rosenzweig
authors.forename: K I
authors.initials: KI
authors.lastname: Wolpin
mesh_terms: D000367:Age Factors; D000569:Americas; D001695:Biology; D001724:Birth Weight; D001835:Body Weight; D003710:Demography; D019049:Developed Countries; D004467:Economics; D005190:Family; D005191:Family Characteristics; D005298:Fertility; D006280:Health Workforce; D008962:Models, Theoretical; D009656:North America; D010827:Physiology; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D011253:Pregnancy in Adolescence; D012106:Research; D012725:Sexual Behavior; D014481:United States
keywords: Adolescent Pregnancy; Age Factors; Americas; Biology; Birth Weight; Body Weight; Demographic Factors; Developed Countries; Economic Factors; Family And Household; Fertility; Heterogeneity; Human Capital; Human Resources; Kinship Networks; Models, Theoretical; North America; Northern America; Physiology; Population; Population Characteristics; Population Dynamics; Reproductive Behavior; Research Methodology; United States