Notes, Comments and Preliminary results May 21 2013 Renato Bruni , Francesco Cesarone , Andrea Scozzari and Fabio Tardella   No arbitrage and a linear portfolio selection model   Abstract  Contact Information  Citation  Full Text  -  Preliminary Result   Dec 24 2012 Renato Bruni , Francesco Cesarone , Andrea Scozzari and Fabio Tardella   A new stochastic dominance approach to enhanced index tracking problems   Abstract  Contact Information  Citation  Full Text  -  Preliminary Result