Ahlem Dakhlaoui Faculté des sciences économiques de Nabeul   Faculty of Economics and Management of Nabeul , Nabeul 8000 Tunisia   Ahlem.Dakhlaoui@ept.rnu.tn         Primary Research Focus: electricity market , natural resources, games theory, mathematical and quantitatives methods and econometric   JEL Areas: Q4 : Energy: General C0 : Mathematical and Quantitative Methods: General