Briefly defines and provides some background on Eugen von Bohm-Bawerk's "marginal pairs" theory of pricing. Asserts that Bohm-Bawerk's theory is a good introduction to the Austrian school of economics and illustrates the differences between this approach and neoclassical economic theory. Includes several graphs and tables of data. (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)

Shows how the Cournot-Nash and Stackelberg equilibria can be represented in the familiar supply-demand graphical framework, allowing a direct comparison with the monopoly, competitive, and industrial organization models. This graphical analysis is represented throughout the article. (MJP)

Explores the consequences of textbook authors' failure to recognize that producers can acquire the good in which they lack a comparative advantage through either trade or internal production. Examines variations in the construction and graphical depiction of consumption possibility frontiers in principles of economics textbooks. (MJP)