Business students are portrayed as behaving too egoistically. The critics call for more socialnresponsibility and good citizenship behavior on the part of business students. We present evidence ofnpro-social behavior in business students. Every student at the University of Zurich has to decide eachnsemester whether he/she wants to contribute to two social funds administrated by the University. Withnthis large panel data set, we can analyze whether business students indeed behave less pro-socially thannother students. Two specific hypotheses are tested: do students select into business studies or does thentraining in business studies indoctrinate students in a negative way? The evidence suggests that therenmay be a selection effect going on. Therefore, economics education does not change the citizenshipnbehavior of business students.