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Assessment of Post-merger Coordinated Effects: Characterization by Simulations

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  • Ivaldi, Marc
  • Lagos, Vicente

Abstract

This paper aims at evaluating the coordinated effects of horizontal mergers by simulating their impact on firms' critical discount factors. We consider a random coefficient model on the demand side and heterogeneous price-setting firms on the supply side. Results suggest that mergers strengthen the incentives to collude among merging parties, but weaken the incentives of non-merging parties, with the former effect being stronger. To assess the magnitudes of these effects, we introduce the concepts of Asymmetry in Payoffs and Change in Payoffs effects, which allow us to identify appropriate screening tools according to the relative pre-merger payoffs of merging parties.

Suggested Citation

  • Ivaldi, Marc & Lagos, Vicente, 2016. "Assessment of Post-merger Coordinated Effects: Characterization by Simulations," CEPR Discussion Papers 11218, C.E.P.R. Discussion Papers.
    • Handle: RePEc:cpr:ceprdp:11218
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    References listed on IDEAS

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    1. Olivier Armantier & Oliver Richard, 2008. "Domestic airline alliances and consumer welfare," RAND Journal of Economics, RAND Corporation, vol. 39(3), pages 875-904.
    2. Brito, Duarte & Ribeiro, Ricardo & Vasconcelos, Helder, 2013. "Quantifying the Coordinated Effects of Partial Horizontal Acquisitions," CEPR Discussion Papers 9536, C.E.P.R. Discussion Papers.
    3. Farrell Joseph & Shapiro Carl, 2010. "Antitrust Evaluation of Horizontal Mergers: An Economic Alternative to Market Definition," The B.E. Journal of Theoretical Economics, De Gruyter, vol. 10(1), pages 1-41, March.
    4. Laura Grigolon & Frank Verboven, 2014. "Nested Logit or Random Coefficients Logit? A Comparison of Alternative Discrete Choice Models of Product Differentiation," The Review of Economics and Statistics, MIT Press, vol. 96(5), pages 916-935, December.
    5. Céline Bonnet & Pierre Dubois, 2010. "Inference on vertical contracts between manufacturers and retailers allowing for nonlinear pricing and resale price maintenance," RAND Journal of Economics, RAND Corporation, vol. 41(1), pages 139-164.
    6. Steven T. Berry, 1994. "Estimating Discrete-Choice Models of Product Differentiation," RAND Journal of Economics, The RAND Corporation, vol. 25(2), pages 242-262, Summer.
    7. Jean Tirole, 1988. "The Theory of Industrial Organization," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262200716, January.
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    Cited by:

    1. Luke Garrod & Matthew Olczak, 2017. "Collusion Under Imperfect Monitoring with Asymmetric Firms," Journal of Industrial Economics, Wiley Blackwell, vol. 65(3), pages 654-682, September.

    More about this item

    Keywords

    Collusion; Coordinated effects; Critical Discount Factor; Merger Simulation;

    JEL classification:

    • L41 - Industrial Organization - - Antitrust Issues and Policies - - - Monopolization; Horizontal Anticompetitive Practices

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