Riccardo Tilli Department of Public Economics - Sapienza - University of Rome   via del Castro Laurenziano, 9 Rome, 00161 Italy   riccardo.tilli@uniroma1.it   http://dep.eco.uniroma1.it/~tilli/       Primary Research Focus: Labor Economics Unemployment, Institutions, Labor Policies Unemployment Duration, Incidence and Job Search   JEL Areas: J0 : Labor and Demographic Economics: General J6 : Mobility, Unemployment, and Vacancies: General