Estimating Merging Costs by Merger Preconditions |
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Authors: | Jingang Zhao |
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Institution: | (1) Department of Economics, University of Saskatchewan, 9 Campus Drive, Saskatoon, SK, S7N 5A5, Canada |
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Abstract: | This article provides a method for estimating the bounds of transaction costs in horizontal mergers. Consider, for example,
a completed monopoly merger in linear Cournot oligopolies with 10 symmetric firms. The method shows that its transaction costs
are at most 25% (78%) of total premerger profits if there is zero (100%) excess capacity. Such estimations can be extended
in a straightforward manner to other mergers and other oligopoly models. The estimation is based both on the profitability
precondition, and on the non-empty core precondition, which postulates that the split of a merger’s profits be in its core.
The article shows that the core in linear Cournot oligopolies has a non-empty interior, and indicates that the non-empty core
precondition also sheds new lights on understanding important issues such as the stylized fact that mergers are likely to
occur in markets plagued by excess capacities; why profitable mergers might not be formed; and why completed mergers might
break up in the future.
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Keywords: | core estimation of transaction costs merger precondition oligopoly |
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