Quantitative competition analysis: Stationarity tests in geographic market definition
The paper focuses on the delineation of geographic markets in competition analysis, investigating the use of both quantitative and qualitative evaluation in the market definition exercise. To this end, the first part is devoted to a conceptual framework for market definition (adopted from Haldrup (2003)). Thereafter, a variety of price tests are explored that can be applied within the quantitative part of the framework. Similar to Forni (2004), the paper emphasizes the use of stationarity tests (that is, tests for the existence of unit roots) – illustrating their application to a recent competition investigation in South Africa.
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- Pierre Perron & Serena Ng, 1996.
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- Perron, P. & Ng, S., 1994. "Useful Modifications to Some Unit Root Tests with Dependent Errors and Their Local Asymptotic Properties," Cahiers de recherche 9427, Universite de Montreal, Departement de sciences economiques.
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- David Genesove, 2004. "Comment on Forni's "Using Stationarity Tests in Antitrust Market Definition"," American Law and Economics Review, Oxford University Press, vol. 6(2), pages 476-478.
- Haldrup, Niels, "undated". "Empirical analysis of price data in the delineation of the relevant geographical market in competition analysis," Economics Working Papers 2003-9, Department of Economics and Business Economics, Aarhus University.
- Nicola Theron, 2001. "The Economics Of Competition Policy: Merger Analysis In South Africa," South African Journal of Economics, Economic Society of South Africa, vol. 69(4), pages 614-658, December.
- Serena Ng & Pierre Perron, 2001. "LAG Length Selection and the Construction of Unit Root Tests with Good Size and Power," Econometrica, Econometric Society, vol. 69(6), pages 1519-1554, November.
- Serena Ng & Pierre Perron, 1997. "Lag Length Selection and the Construction of Unit Root Tests with Good Size and Power," Boston College Working Papers in Economics 369, Boston College Department of Economics, revised 01 Sep 2000.
- Mario Forni, 2004. "Using Stationarity Tests in Antitrust Market Definition," American Law and Economics Review, Oxford University Press, vol. 6(2), pages 441-464.
- Forni, Mario, 2002. "Using Stationarity Tests in Antitrust Market Definition," CEPR Discussion Papers 3236, C.E.P.R. Discussion Papers.
- Daniel Hosken & Christopher T. Taylor, 2004. "Discussion of "Using Stationarity Tests in Antitrust Market Definition"," American Law and Economics Review, Oxford University Press, vol. 6(2), pages 465-475. Full references (including those not matched with items on IDEAS)
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