Cira Perna has received the Degree in Mathematics from the University of Naples in 1983 and the M. Phil. in Statistics from the CSREAM, University of Naples, in 1985. She had Faculty positions, as Associate Professor, at the University of Calabria (1992-1994) and at the University of Salerno (1994-1999). She has been Professor of Statistics at the University of Salerno ... Read moresince 2000. She has published over 50 technical papers in journals and books. Her current research focuses on non linear time series analysis, artificial neural network models, resampling techniques. She is a member of the Italian Statistical Society and of the IASC. She is also in the board of the ANSET (Italian Time Series Analysis Research Group). Marilena Sibillo: After graduating in Quantitative Economics at the University of Naples Federico II, she worked at the University of Naples Federico II as a Researcher and taught at the Universities of Sassari and Salerno as Associate Professor. Since 2004 she is Professor in Financial Mathematics. She is author of several papers, mostly in Actuarial Mathematics, published in international specialized journal. At present her research is focused on the risk analysis in actuarial portfolio valuations. Show Less