EU ANTITRUST: HOT TOPICS & NEXT STEPS

EU ANTITRUST: HOT TOPICS & NEXT STEPS 2022

Prague, Czechia

the calculation of a product specific price elasticity of demand should not be positioned too high. In certain situations, even a simple dataset reflecting few price changes in past years could be meaningful. It is likely that such real data would be available in most cases. Alternatively, the product specific price elasticity of demand may be estimated from questionnaires addressed to the customers of the investigated firm, which would ask about hypothetical reactions to a price increase, similarly as the SSNIP tests are performed nowadays in practice. References [1] Breshanan, T. F. (1989). Empirical studies of industries with market power. In: Schmalensee, R. and Willig, R. (eds.). Handbook of Industrial Organization, vol. 2. North Holland, pp. 1011–1057. [2] Carlton, D. W. and Israel, M. (2010). Will the New Guidelines Clarify or Obscure Antitrust Policy? The Antitrust Source , Vol. 10. [3] Chamberlin, E. H. (1933). The Theory of Monopolistic Competition . [4] Coate, M. B. and Simons, J. J. (2012). In Defense of Market Definition, The Antitrust Bulletin , Vol 57, pp. 667–682. [5] Communication from the European Commission – Guidance on the Commission’s enforcement priorities in applying Article 82 of the EC Treaty to abusive exclusionary conduct by dominant undertakings, [2009] OJ C 45, p. 7. [6] Cowling, K. and Waterson, M. (1976) Price-Cost Margins and Market Structure. Economia , Vol. 43, pp. 267–274. [7] Eben, M. A. K. (2019). Addressing the Main Hurdles of Product Market Definition for Online Services: Products, Price, and Dynamic Competition . Dissertation thesis, Univer sity of Leeds. [8] Elzinga, K. G. and Mills, D. E. (2011). The Lerner Index of Monopoly Power: Ori gins and Uses. American Economic Review , Vol. 101, No. 3, pp. 558–564. [9] European Union (2012). Roundtable on Market Definition. Note by the Delegation of the European Union. DAF/COMP/WD(2012)28. [10] Glasner, D. and Sullivan, S. P. (2020) The Logic of Market Definition. Antitrust Law Journal, Vol. 83, pp. 293–352. [11] Holt Jr., C. A. (1983). On the Use of Profit Data to Estimate the Social Costs of Mo nopoly Power in an Oligopoly. Journal of Economics and Business , Vol. 34, pp. 283–289. [12] Judgment of the European Court of Justice of 14 February 1978, United Brands (27/76), EU:C:1978:22. [13] Judgment of the European Court of Justice of 13 February 1979, Hoffmann-La Roche (85/76), EU:C:1979:36. [14] Judgment of the European Court of Justice of 3 July 1991, AKZO (C-62/86), EU:C:1991:286.

448