Notes, Comments and Preliminary results Dec 11 2012 Kai Andree and Mike Schwan   Collusive Market Sharing with Spatial Competition   Abstract  Contact Information  Citation  Full Text  -  Note   Apr 15 2011 Kai Andree and Juljana Calaki   Product differentiation in a spatial Cournot model with asymmetric demand   Abstract  Contact Information  Citation  Full Text  -  Note