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Cartel dating

Author

Listed:
  • H. Peter Boswijk
  • Maurice J.G. Bun
  • Maarten Pieter Schinkel

    (University of Amsterdam)

Abstract

The begin and end dates of cartels are often ambiguous, despite competition authorities stating them with precision. The legally established infringement period(s), based on documentary evidence, need not coincide with the period(s) of actual cartel effects. In this paper, we show that misdating cartel effects leads to a (weak) overestimation of but-for prices and an underestimation of overcharges. Total overcharges based on comparing but-for prices to actual prices are a (weak) underestimation of the true amount overcharged, irrespective of the type and size of the misdating. The bias in antitrust damage estimation based on predicted cartel prices can have either sign. We extend the before-during-and-after method with an empirical cartel dating procedure that uses multiple structural break tests to determine the actual begin and end date(s) of the effects of collusive agreements. Empirical findings in the European Sodium Chlorate cartel corroborate our theoretical results.

Suggested Citation

  • H. Peter Boswijk & Maurice J.G. Bun & Maarten Pieter Schinkel, 2016. "Cartel dating," UvA-Econometrics Working Papers 16-04, Universiteit van Amsterdam, Dept. of Econometrics.
    • Handle: RePEc:ame:wpaper:1604
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    References listed on IDEAS

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    Cited by:

    1. Hellwig, Michael & Hüschelrath, Kai, 2018. "When Do Firms Leave Cartels? Determinants And The Impact On Cartel Survival," International Review of Law and Economics, Elsevier, vol. 54(C), pages 68-84.

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    More about this item

    JEL classification:

    • C22 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes
    • C51 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Construction and Estimation
    • L41 - Industrial Organization - - Antitrust Issues and Policies - - - Monopolization; Horizontal Anticompetitive Practices

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