Francesco Schettino Department of Public Economy, University of Rome   via val chisone, 35 rome, rome 00141 italy   francesco.schettino@uniroma1.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