RT Journal Article SR Electronic T1 Birth Order and Human Capital Development JF Journal of Human Resources JO J Hum Resour FD University of Wisconsin Press SP 359 OP 392 DO 10.3368/jhr.49.2.359 VO 49 IS 2 A1 De Haan, Monique A1 Plug, Erik A1 Rosero, José YR 2014 UL http://jhr.uwpress.org/content/49/2/359.abstract AB In this paper we examine the effect of birth order on human capital development in Ecuador. Using family fixed effects models we find positive and persistent birth order effects; earlier-born children stay behind in their human capital development from infancy to adolescence. Turning to potential mechanisms, we find that earlier-born children receive less quality time from their mothers. Additionally, they are breastfed shorter. Poverty plays a key role in explaining these birth order patterns; we observe the largest birth order effects in poor and low-educated families, accompanied with reversed birth order effects in rich and high-educated families.