Francesco Schettino Department of Management and Industrial Organization, University Politecnica delle Marche & Department of Public Economics, University of Rome I, La Sapienza   via val chisone, 35 rome, rome 00141 italy   f.schettino@univpm.it   http://dep.eco.uniroma1.it/phd/phdstudents/schettino/schettino.html       Primary Research Focus: Evaluation of Innovation and Technological Change   JEL Areas: O3 : Technological Change; Research and Development: General O4 : Economic Growth and Aggregate Productivity: General