Ricercatore, Università di Parma (1984-87),
Professore Associato, Università La Sapienza, Roma (1987-90),
Professore Ordinario, Università D'Annunzio, Pescara (1990-2002),
Professore Ordinario, Università di Torino (2002-2006),
Professore Ordinario, LUISS Guido Carli (2006-oggi).
Visiting scholar, University of Arizona, MIT, Duke University, Tel Aviv University, Accademia Ungherese delle Scienze, Northwestern University.
Visiting professor, Stanford University, University of North Carolina, Chapel Hill, Hebrew University of Jerusalem, Université de Paris VI, Université de Paris Dauphine, Université de Paris La Sorbonne, Ecole Polytechnique, HEC Paris.
Fellow, Italian Academy at Columbia University.
Componente del comitato di redazione di Methodology and Computing in Applied Probability, Statistics & Probability Letters, Advances in Applied Probability, Journal of Applied Probability, Theory and Decision.
Relatore invitato a varie conferenze.
Ha pubblicato articoli in svariate riviste, tra cui
Advances in Applied Probability, Annals of the Institute of Statistical Mathematics, Economic Theory, European Journal of Operational Research, Games and Economic Behavior, Insurance: Mathematics and Economics, International Journal of Game Theory, Journal of Applied Probability, Journal of Economic Theory, Journal of Mathematical Economics, Journal of Multivariate Analysis, Journal of Optimization Theory and Applications, Journal of Statistical Planning and Inference, Journal of the American Statistical Association, Management Science, Mathematical Social Sciences, Mathematics of Operations Research, Naval Research Logistics, Scandinavian Actuarial Journal, Scandinavian Journal of Statistics, SIAM Journal on Optimization, Social Choice and Welfare, Stochastic Processes and their Applications, Theory and Decision.