02147cam a2200241 a 4500020001400000050002000014050001700034100002300051245012800074260004300202300002800245490002400273520122700297650002101524650001801545650002801563650002401591650002101615650001801636700003001654856006601684856015501750  a082131629 4aHB 1054.6.bPIT 4aHD 6977bPIT1 aPitt, Mark Martin,14aThe selectivity of fertility and the determinants of human capital investments :bparametric and semiparametric estimates /  aWashington, D.C. :bWorld Bank,c1990.  ac46 p :b1 illustration1 aLSMS working paper,  aIn this paper the authors assess the importance of heterogeneity and selective fertility in altering estimates and interpretations of the determinants of the human capital of children. The authors set out a sequential model of human capital investments in children incorporating endogenous fertility and heterogeneity in human capital endowments to illustrate the fertility selection problem and issues of identification. Empirical results based on parametric and semiparametric estimates of selectivity models applied to data on birthweight and schooling in Malaysia indicate that the hypothesis of no fertility selection is strongly rejected, with mothers having higher birthweight children tending to have substantially lower birth probabilities (negative birth selectivity). As a consequence, the positive association between mother's schooling and birthweight is substantially underestimated and the positive effects of delaying childbearing overestimates when birth selectivity is not taken into account. The schooling results indicates strong rejection of the "efficient schooling" model, in which schooling is allocated efficiently across children, but only when the selectivity of fertility is taken into account. 0aFertility, Human 0aHuman capital 6aF�econdit�e humaine 6aRessources humaines 7aFertility, Human 7aHuman capital1 aRosenzweig, Mark Richard,40uhttp://books.google.com/books?id=nJHpAAAAIAAJydownload ebook40uhttp://www-wds.worldbank.org/external/default/WDSContentServer/WDSP/IB/1999/03/31/000178830_98101902173282/Rendered/PDF/multi0page.pdfydownload ebook