Rohlfs presents a model that seems better suited to analysis of new Internet-based businesses that rely on network effects, like Facebook and YouTube. Richard Schmalensee (MIT)

Two decades have passed since the Clean Air Act Amendments of 1990 launched a grand experiment in market-based environmental policy: the SO2 cap-and-trade system. That system performed well but created four striking ironies. First, this system was put in place to curb acid rain, but the main...

This timely Handbook reviews many key issues in the economics of energy and climate change, raising new questions and offering solutions that might help to minimize the threat of energy-induced climate change.

“Green growth” is an attractive slogan with a variety of possible meanings. This essay critically examines several potential meanings of this slogan and provides a brief overview of some of the main implications of the other papers in this special issue. Taken together, these papers argue...

This paper presents an analysis of the ready-to-eat breakfast cereal industry based on and related to the current antitrust case involving its leading producers. A spatial competition comparison framework is employed, with brands assumed relatively immobile. It is argued that the industry's...

Airline regulation is assumed to fix fares and the number of competitors. Noncooperative schedule determination in a single regulated market served by a small number of carriers is analyzed. Comparative static effects of changes in cost and demand conditions, regulated fares, and numbers of...

This note presents a simple model of the determination of the cost of distributing a public utility service to customers spread over a single urban area. Total distribution cost depends on the cost of transmitting services and on the spatial pattern of demand. Everywhere decreasing average cost...