Search Costs, Demand-Side Economies and the Incentives to Merge under Bertrand Competition
AbstractWe study the incentives to merge in a Bertrand competition model where firms sell differentiated products and consumers search sequentially for satisfactory deals. In the pre-merger symmetric equilibrium, consumers visit firmsrandomly. However, after a merger, because insiders raise their prices more than the outsiders, consumers start searching for good deals at the non-merging stores, and only when they do not find a satisfactory product there they visit the merging firms. As search costs go up, consumer traffic from the non-merging firms to the merged ones decreases and eventually mergers become unprofitable. This new merger paradox can be overcome if the merged entity chooses to stock each of its stores with all the products of the constituent firms, which generates sizable search economies. We show that such demand-side economies can confer the merging firms a prominent position in the marketplace, in which case their price may even be lower than the price of the non-merging firms. In that situation, consumers start searching for a satisfactory good at the merged entity and the firms outside the merger lose out. When search economies are sufficiently large, a merger is beneficial for consumers too, and overall welfare increases.
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Bibliographic InfoPaper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 9374.
Date of creation: Mar 2013
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Other versions of this item:
- Jose L. Moraga-Gonzalez & Vaiva Petrikaite, 2012. "Search Costs, Demand-Side Economies and the Incentives to merge under Bertrand Competition," Tinbergen Institute Discussion Papers 12-017/1, Tinbergen Institute.
- D40 - Microeconomics - - Market Structure and Pricing - - - General
- D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search, Learning, and Information
- L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
This paper has been announced in the following NEP Reports:
- NEP-ALL-2013-04-13 (All new papers)
- NEP-COM-2013-04-13 (Industrial Competition)
- NEP-MIC-2013-04-13 (Microeconomics)
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