and Rickard Sandin
Marcus Asplund: Department of Economics, Postal: Stockholm School of Economics, Box 6501, 113 83 Stockholm, Sweden
Rickard Sandin: Department of Economics, Postal: Stockholm School of Economics, Box 6501, 113 83 STOCKHOLM, SWEDEN
Abstract: Many oligopoly theories predict that there will be a positive correlation between market size and the equilibrium number of firms, and some also imply that competition is more intense in larger markets. We test these predictions with a sample of 535 driving schools in 249 markets. With an ordered Probit, a Tobit, and a Poisson model we estimate the relation between the number of firms, capacity, and market size. We find a strong positive correlation between market size and the number of firms. The results show that the per firm market size is increasing in the number of firms in the market. The market size per capacity unit is smaller in large markets. Since the industry produces a fairly homogenous good, we argue that this is evidence that competition is increasing in market size.
25 pages, January 1996
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