RT Journal Article SR Electronic T1 Identifying Sibling Influence on Teenage Substance Use JF Journal of Human Resources JO J Hum Resour FD University of Wisconsin Press SP 1 OP 47 DO 10.3368/jhr.52.1.0714-6474R1 VO 52 IS 1 A1 Altonji, Joseph G. A1 Cattan, Sarah A1 Ware, Iain YR 2017 UL http://jhr.uwpress.org/content/52/1/1.abstract AB We assess the extent to which the large sibling correlations in substance use are causal. Our primary approach is based on a joint dynamic model of the behavior of older and younger siblings that allows for family specific effects, individual specific heterogeneity, and state dependence. We use the model to simulate the dynamic response of substance use to the behavior of the older sibling. Overall, we find that substance use is affected by the example of older siblings but only a small fraction of the sibling correlation is causal.