Norton, Edward C.; Lindrooth, Richard C.; Ennett, Susan T. - In: Health Economics 7 (1998) 5, pp. 439-453
This study examines whether the effects of peer substance use on adolescent alcohol and tobacco use are due to endogeneity of adolescents selecting their peer group. We analyzed data collected for a longitudinal analysis of a drug-use prevention programme for upper elementary school students. We...