Bjoern Negelmann Lehrstuhl für Marketing - Universität Erlangen Nürnberg   Lange Gasse 20 Nürnberg, Germany 90403 Germany   bjoern.negelmann@wiso.uni-erlangen.de   http://www.marketing.wiso.uni-erlangen.de       Primary Research Focus: Pricing on the Internet   JEL Areas: D4 : Market Structure and Pricing: General M3 : Marketing and Advertising: General