Fifty years ago what was taught in the principles of economics course reflected reasonably well what economists did in their research. That, however, is no longer the case; today what economists teach has a more nuanced relation to what they do. The reason is that the economics profession and the textbooks have evolved differently. The author…

The author describes a classroom game demonstrating the process of adjustment to long-run equilibrium in a market consisting of price-taking firms. This game unites and extends key insights from several simpler games in a framework more consistent with the standard textbook model of a competitive industry. Because firms have increasing marginal…

Many introductory microeconomics textbook authors derive the law of demand from the assumption of diminishing marginal utility. Authors of intermediate and graduate textbooks derive demand from diminishing marginal rate of substitution and ordinal preferences. These approaches are not interchangeable; diminishing marginal utility for all goods is…

States that short-run production theory and U-shaped cost curves do not conform to industrial reality. Explores in detail the reality of manufacturing stating that fixed proportions seem more suited to describing short-run manufacturing processes. Addresses fixed proportions in short-run production and short-run cost functions. Includes…

This classroom exercise illustrates the Tiebout (1956) hypothesis that residential sorting across multiple jurisdictions leads to a more efficient allocation of local public goods. The exercise places students with heterogeneous preferences over a public good into a single classroom community. A simple voting mechanism determines the level of…

Instructors can use a computerized experiment to introduce students to imperfect competition in courses on introductory economics, industrial organization, game theory, and strategy and management. In addition to introducing students to strategic thinking in general, the experiment serves to demonstrate that profits of a firm fall as the number of…

Describes a pit-market experiment using the work of Charles A. Holt to illustrate to students the real world relevance of the competitive equilibrium concept. Explains how to set up and conduct a pit-market experiment, discusses features of the data, and provides accompanying materials. (JEH)

Observes that the envelope theorem, a fundamental tool in duality analysis, is still a puzzle to many people. Argues that the essence of a solution proposed by Paul Samuelson (1947) is also unclear to many people, but can be communicated with a simple cost diagram. Presents and explains the proposed diagram. (DSK)

Updates a study of the coverage of entrepreneurship contained in principles of economics textbooks originally carried out in the mid-1980s. Analyzes coverage of the same topics in 14 popular introductory texts. Concludes that entrepreneurship still has not worked its way into economics-principles texts. (DSK)

Computer simulation of the Alonso household location model can enrich the intermediate microeconomics course. The model includes decisions on location, land space, and other goods and is a valuable complement to the usual textbook model of household consumption. It has three decision variables, one of which is a "bad," and one good's price is a…

Presents a brief classroom demonstration illustrating Bertrand price undercutting by outlining the experiment, discussing the game theory solution and experiences, and presenting related literatures. States that students remember the lesson because of the significant amounts of money each could have earned. (JEH)

In Australia, the authors learned it is common to ask one or more conference participants to summarize and assess the conference in a final "closing" session. They found the experience of serving as "closers" strangely similar to what students are asked to do in providing an overall assessment of a course or instructor at the…

States that often constant returns to scale are also much more and that many important results depend on the very special properties of this class of production function. Offers a unified set of simple proofs, employing only familiar diagrams and high school geometry, for most of the crucial analytical properties of constant returns production.…

Discusses four reasons why economic forecasting courses are important: (1) forecasting skills are in demand by businesses; (2) forecasters are in demand; (3) forecasting courses have positive externalities; (4) and forecasting provides a real-world context. Describes what should be taught in an economic forecasting course. (CMK)

Explores the importance of second-order conditions in the cost-minimization problem confronting the monopsonistic employer of factor inputs. Describes an alternative approach to the presence of pecuniary effects that does not depend on the assumption that firms are monopsonistic in factor markets. (CMK)