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Podszun, Rupprecht --- "The pitfalls of market definition: towards an open and evolutionary concept" [2018] ELECD 1507; in Di Porto, Fabiana; Podszun, Rupprecht (eds), "Abusive Practices in Competition Law" (Edward Elgar Publishing, 2018) 68

Book Title: Abusive Practices in Competition Law

Editor(s): Di Porto, Fabiana; Podszun, Rupprecht

Publisher: Edward Elgar Publishing

ISBN: 9781788117333

Section: Chapter 4

Section Title: The pitfalls of market definition: towards an open and evolutionary concept

Author(s): Podszun, Rupprecht

Number of pages: 23

Abstract/Description:

Market definition and the calculation of market shares for dominance are two features of competition law that are at the core of many abuse cases. Yet, the concepts – market definition, dominance – have significant weaknesses. Instead of turning away from market definition completely, as is advocated by some scholars, the better way seems to have a more open and evolutionary concept of market definition. Market definition is to be understood as the starting point for setting the scene, gathering economic information. This requires qualitative assessments and awareness for path dependencies and bounded rationality. Such an understanding may solve problems currently associated with market definition in multi-sided markets.