Peers Effects on a Fertility Decision: An Application for Medellín Colombia
The series Working Papers on Economics is published by the Office for Economic Studies at the Banco de la República (Central Bank of Colombia). The works published are provisional, and their authors are fully responsible for the opinions expressed in them, as well as for possible mistakes. The opinions expressed herein are those of the authors and do not necessarily reflect the views of Banco de la República or its Board of Directors.
This paper addresses the estimation of peer group effects on a fertility decision. The peer group is composed of neighbors with similar socio-demographic characteristics. In order to deal with the endogeneity problem associated to the estimation of neighborhood effects, an instrumental variables procedure is performed. To control for the reflection problem, usual in linear effects models, this paper uses an identification strategy that relies on the definition of peer groups at the individual level. This paper provides evidence that peer effects explain the age at which poor women in Medellín (Colombia) decide to have their firstborn. These social forces are hazardous factors that may increase the incidence of adolescent pregnancy.
This paper is a preliminary work. The opinions expressed here are those of the author and not of the Banco de la República de Colombia nor of its Board. All errors are author´s responsibility.