The Impact of Competition Policy: What are the Known Unknowns?

Davies, Stephen and Ormosi, Peter (2013) The Impact of Competition Policy: What are the Known Unknowns? Working Paper. Centre for Competition Policy, Norwich.

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    Abstract

    Evaluations of competition policy are increasingly common and typically establish that consumer bene.ts from detected cases easily outweigh the costs of competition authorities (CA). However, such assessments are often driven by data availability and only capture a small part of the total impact because they sidestep the difficult issue of how to evaluate deterrence. Similarly, they ignore the fact that policy does not root out all anti-competitive cases. This paper suggests a broader framework for evaluation which encompasses these unobserved impacts. Calibration is difficult precisely because we cannot rely on empirical observations on cases which have been observed to make deductions about cases which have not (because they are deterred or undetected). It thereby confronts the classic sample selection problem which is endemic in all studies based on data from CA decisions. Drawing on insights from economic theory, it argues that selection bias is likely to be substantial because the unobserved cases could well be those which are most harmful. If so, the deterrence of anti-competitive mergers may have a much greater positive impact, but the effects of non-detected cartels may be more serious than is usually supposed.

    Item Type: Monograph (Working Paper)
    Faculty \ School: Faculty of Social Sciences > School of Economics
    Faculty of Social Sciences > Norwich Business School
    Depositing User: Pure Connector
    Date Deposited: 06 Mar 2014 12:28
    Last Modified: 30 Dec 2018 00:52
    URI: https://ueaeprints.uea.ac.uk/id/eprint/47813
    DOI:

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