Notes, Comments and Preliminary results Aug 26 2011 Stefano Colombo   Spatially asymmetric firms and the sustainability of a price agreement   Abstract  Contact Information  Citation  Full Text  -  Note   Jan 04 2011 Stefano Colombo   Network externalities and differentiation in an entry model   Abstract  Contact Information  Citation  Full Text  -  Note   Jun 02 2010 Stefano Colombo   A note on information of firms and collusion   Abstract  Contact Information  Citation  Full Text  -  Note   Dec 06 2009 Stefano Colombo   The unidirectional Hotelling model with spatial price discrimination   Abstract  Contact Information  Citation  Full Text  -  Note   Jul 17 2009 Stefano Colombo   Sustainability of collusion with imperfect price discrimination and inelastic demand functions   Abstract  Contact Information  Citation  Full Text  -  Note   Mar 13 2009 Stefano Colombo   Firms' symmetry and sustainability of collusion in a Hotelling duopoly   Abstract  Contact Information  Citation  Full Text  -  Note   Research announcements Conference announcements