We formalize and extend George Stigler’s famous article “The division of labor is limited by the extent of the market.” We emphasize economies of scale in intermediate goods production as a determinant of firm boundaries and vertical control. We show that there are potential coordination...

We introduce a simple web-based classroom experiment in which students learn the Ricardian model of international trade. Students are assigned to countries and then make individual production, trade and consumption decisions. The analysis of experimental data introduces students to the concepts...