Strategic Assortment Reduction by a Dominant Retailer August 2006 Anthony Dukes School of Economics and Management University of Aarhus Room 322, Building 1322 Aarhus, Denmark, DK 8000 Tel:+45 8942 1606, Fax:+45 8942 1540 adukes@econ.au.dk Tansev Geylani Katz Graduate School of Business University of Pittsburgh Pittsburgh PA tgeylani@katz.pitt.edu Kannan Srinivasan Tepper School of Business Carnegie Mellon University Pittsburgh PA kannans@andrew.cmu.edu