Notes, Comments and Preliminary results Jan 11 2010 Enrico Guzzini   Efficient Nash equilibria, individual rights and Pareto principle: an impossibility result   Abstract  Contact Information  Citation  Full Text  -  Note   Dec 11 2009 Enrico Guzzini and Antonio Palestrini   The empty core in the Coase theorem: a critical assessment   Abstract  Contact Information  Citation  Full Text  -  Note