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Communication in vertical markets: Experimental evidence

Claudia Moellers, Hans-Theo Normann and Christopher Snyder ()

International Journal of Industrial Organization, 2017, vol. 50, issue C, 214-258

Abstract: An upstream monopolist supplying competing downstream firms may fail to monopolize the market because it is unable to commit not to behave opportunistically. We build on previous experimental studies of this well-known commitment problem by introducing communication. Allowing the upstream firm to chat privately with each downstream firm reduces total offered quantity from near the Cournot level (observed in the absence of communication) halfway toward the monopoly level. Allowing all firms to chat together openly results in complete monopolization. Downstream firms obtain such a bargaining advantage from open communication that all of the gains from monopolizing the market accrue to them. A simple structural model of Nash-in-Nash bargaining fits the pattern of shifting surpluses well. Using third-party coders, unsupervised text mining, among other approaches, we uncover features of the rich chat data that are correlated with market outcomes. We conclude with a discussion of the antitrust implications of open communication in vertical markets.

Keywords: Commitment; Communication; Experiments; Vertical restraints (search for similar items in EconPapers)
JEL-codes: C70 C90 K21 L42 (search for similar items in EconPapers)
Date: 2017
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Working Paper: Communication in Vertical Markets: Experimental Evidence (2016) Downloads
Working Paper: Communication in vertical markets: Experimental evidence (2016) Downloads
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Persistent link: https://EconPapers.repec.org/RePEc:eee:indorg:v:50:y:2017:i:c:p:214-258

DOI: 10.1016/j.ijindorg.2016.10.002

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International Journal of Industrial Organization is currently edited by P. Bajari, B. Caillaud and N. Gandal

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