Recommends reviewing the 1958 debate between P. A. Samuelson and J. R. Minasian over the controversy involving tax-financed television versus pay-TV. This exercise is a lively way to introduce students to the issue of exclusionary devices for public goods. Includes graphical analysis and excerpts from the original debates. (MJP)

Reconsiders Uriel Spiegel's analysis of the Giffen phenomenon, a utility function that yields an inferior good with an upward-sloping demand curve. Extends this to include similar utility functions that yield inferiority. Discusses the earlier work of related theorists including Liebhafsky, Vandermeulen, and Wold and Jureen. (MJP)

Reexamines Spiegel's analysis of the Giffen phenomenon, a utility function that yields an inferior good with an upward-sloping demand curve and incorporates Christian Weber's criticism into the model. Disagrees with Weber on some points but agrees that as income decreases the likelihood of the Giffen product decreases. (MJP)

Describes an undergraduate economics course experiment designed to teach the concepts of comparative advantage and opportunity costs. Students have a limited number of labor hours and can chose to produce either wheat or steel. As the project progresses, the students trade commodities in an attempt to maximize use of their labor hours. (MJP)