Vertical Integration and Proprietary Information Transfers

John S. Hughes and Jennifer L. Kao

Journal of Economics & Management Strategy, 2001, vol. 10, issue 2, 277-299

Abstract: Suppose that rival downstream producers of a final good contract with the same upstream supplier of an input and, in the process, reveal private information. A vertical merger between the upstream supplier and one of the downstream firms may dissipate the information advantage of the remaining downstream firms. The welfare consequences of such a merger and related information sharing depend on the value of information, the benefits of integration apart from information sharing, and the nature of upstream competition. In this paper, conditions are found under which owners of a vertically integrated firm are better off breaking up into independent firms. This result may explain AT&T's recent spinoff of Lucent Technologies. Further results suggest that a prohibition on information transfers, such as that often proposed by the Federal Trade Commission and Department of Justice as a precursor to approving vertical mergers, may actually reduce expected consumer surplus and expected social welfare.

Date: 2001
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