The authors present a classroom experiment designed to illustrate key concepts of third-degree price discrimination. By participating as buyers and sellers, students actively learn (1) how group pricing differs from uniform pricing,(2) how resale between buyers limits a seller's ability to price...

The welfare effects of third-degree price discrimination are analyzed when demand in one market is an additively shifted version of demand in the other market and both markets are served with uniform pricing. Social welfare is lower with discrimination if the slope of demand is log-concave or...

We show that the absence of friction between consumers is not sufficient for linear pricing by a monopolist. On the contrary, it is shown that this situation allows the monopolist to achieve perfect discrimination.