This paper analyzes the role of acyclicity in singleton cores. We show that the absence of simultaneous cycles is a sufficient condition for the existence of singleton cores. Furthermore, acyclicity in the preferences of either side of the market is a minimal condition that guarantees the existence of singleton cores. If firms or workers preferences
We study parental choice focusing on the transition between primary and secondary school, taking advantage of the fact that most Chilean students have to switch school at the end of the 8th grade, the last year of primary school. Using a recursive probit model we estimate jointly the probability of attending private voucher versus public