New Developments in the Analysis of Market Structure: Proceedings of a Conference held by the International Economic Association in Ottawa, Canada.

These contributions discuss a number of important developments over the past several decades of a newly established and important field of economics that have led to notable changes in views on governmental policies. They focus on the nature and role of competition and other determinants of market structures, such as numbers of firms and barriers to entry; other factors that determine the effective degree of competition in the market; the influence of major firms; and decentralization and coordination under control relationships other than markets and hierarchies.