Defence date: 20 March 1987
Examining board: Prof. A. Melucci, Università di Milano ; Prof. G. Pasquino, Supervisor, Università di Bologna e Johns Hopkins University ; Prof. A. Pizzorno, I.U.E. e Harvard University ; Prof. P. Schmitter, Supervisor, I.U.E. e Stanford University ; Prof. S. Tarrow, Cornwell University