Notes, Comments and Preliminary results Jan 07 2011 Prabal Roy Chowdhury   The Porter hypothesis and hyperbolic discounting   Abstract  Contact Information  Citation  Full Text  -  Note   Aug 07 2009 Prabal Roy chowdhury   Mixed Oligopoly with Distortions: First Best with Budget-balance and the Irrelevance Principle   Abstract  Contact Information  Citation  Full Text  -  Note