Geroski also reviews several studies using either structural or reduced-form models to examine market dynamics.30 Some of the studies look at cross-sectional data sets. Others focus on particular industries. Geroski describes mixed results where some models predict very slow evolution, others predict fairly rapid movement from some disequilibrium position to a steady state and still others predict movement in the wrong direction. On the whole, this area of research does not produce conclusive results.
The plethora of results precipitates the current book. Perhaps dominance is an area where returning to the methods of industry-specific analyses can provide some meaningful answers. Ten industry analyses follow. Each examines an industry that was dominated by either one firm or a group of firms acting together. While the results may not be applicable to all industries and all situations, they should shed important light on the methods of gaining, maintaining, and sometimes losing dominant positions. Furthermore, the results may also indicate whether dominance and its possible inefficient allocative effects can be long-lived. This may tell us whether the antithetical positions of either no policy or a policy never allowing dominant firms are too extreme.
Many thanks to the authors participating in this project. Thanks also to Kim Largin, Donna Marvin, and Julie Schuur for their exceptional help in preparing this manuscript.