Niels Haldrup, Peter Møllgaard and Claus Kastberg Nielsen
Additional contact information
Niels Haldrup: Department of Economics, Copenhagen Business School, Postal: Department of Economics, Copenhagen Business School, Solbjerg Plads 3 C, 5. sal, DK-2000 Frederiksberg, Denmark
Peter Møllgaard: Department of Economics, Copenhagen Business School, Postal: Department of Economics, Copenhagen Business School, Solbjerg Plads 3 C, 5. sal, DK-2000 Frederiksberg, Denmark
Claus Kastberg Nielsen: Department of Economics, Copenhagen Business School, Postal: Department of Economics, Copenhagen Business School, Solbjerg Plads 3 C, 5. sal, DK-2000 Frederiksberg, Denmark
Abstract: Delineation of the relevant market forms a pivotal part of most antitrust cases. The standard approach is sequential. First the product market is delineated, then the geographical market is defined. Demand and supply substitution in both the product dimension and the geographical dimension will normally be stronger than substitution in either dimension. By ignoring this one might decide first to define products narrowly and then to define the geographical extent narrowly ignoring the possibility of a diagonal substitution. These reflections are important in the empirical delineation of product and geographical markets. Using a unique data set for prices of Norwegian and Scottish salmon, we propose a methodology for simultaneous market delineation and we demonstrate that compared to a sequential approach conclusions will be reversed.
Keywords: Relevant market; econometric delineation; salmon
24 pages, March 15, 2005
Full text files
7633
Questions (including download problems) about the papers in this series should be directed to Lars Nondal ()
Report other problems with accessing this service to Sune Karlsson ().
RePEc:hhs:cbsnow:2005_002This page generated on 2024-09-13 22:19:22.