Information-Sharing Implications of Horizontal Mergers
We analyze the effects of uncertainty and private information on horizontal mergers. Firms face uncertain demands or costs and receive private signals. They may decide to merge sharing their private information. If the uncertainty parameters are independent and the signals are perfect, uncertainty generates an informational advantage only to the merging firms, increasing merger incentives and decreasing free-riding effects. Thus, mergers become more profitable and stable. These results generalize to the case of correlated parameters if the correlation is not very severe, and for perfect correlation if the firms receive noisy signals. From the normative point of view, mergers are socially less harmful compared to deterministic markets and may even be welfare enhancing. If the signals are, instead, publicly observed, uncertainty does not necessarily give more incentives to merge, and mergers are not always less socially harmful.
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- Lars-Hendrik Röller & Johan Stennek & Frank Verboven, 2000.
"Efficiency Gains from Mergers,"
CIG Working Papers
FS IV 00-09, Wissenschaftszentrum Berlin (WZB), Research Unit: Competition and Innovation (CIG).
- Röller, Lars-Hendrik & Stennek, Johan & Verboven, Frank, 2000. "Efficiency Gains from Mergers," Working Paper Series 543, Research Institute of Industrial Economics.
- repec:hhs:iuiwop:543 is not listed on IDEAS
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- Perry, Martin K & Porter, Robert H, 1985. "Oligopoly and the Incentive for Horizontal Merger," American Economic Review, American Economic Association, vol. 75(1), pages 219-227, March.
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- Carl Shapiro, 1986. "Exchange of Cost Information in Oligopoly," Review of Economic Studies, Oxford University Press, vol. 53(3), pages 433-446. Full references (including those not matched with items on IDEAS)
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