Conflict, Evolution, Hegemony and the Power of the State, with David K. Levine, Revised October 2013

Market for Degrees and Educational Standards, with David K. Levine, April 2013

A Generalized Missing-indicator Approach to Regression with Imputed Covariates, with Valentino Dardanoni, Giuseppe De Luca and Franco Peracchi, The Stata Journal 12(4) 2012 pp.575-604,

Anti-Malthus: Conflict and the Evolution of Societies, with David K. Levine, Research in Economics Vo. 76, 2013, pp.289-306

Government Size, the Role of Commitments, with Giuseppe Albanese, Oxford Bulletin of Economics and Statistics 74(4) 2012 pp.532-546, Working paper here

School Grading and Institutional Contexts, with Valentino Dardanoni and Aline Pennisi, Education Economics 19(5) December 2011 p. 475-486, WP here

Regression with Imputed Covariates: a Generalized Missing Indicator Approach, with Valentino Dardanoni and Franco Peracchi, Journal of Econometrics Vol. 162(2) June 2011, pp. 362-368

Co-movement of Public Spending in the G7, with Giuseppe Albanese, Economic Letters 109(2) 2010 pp.121-123, WP here

Uninformed Traders in European Stock Markets, Studi Economici n.100, 2010/1, WP here

Education Transmission: a Two-latent-class Model, with Antonio Forcina, revised October 2011

Open Source without Free-Riding, Economia Politica August 2012, Working paper here

The Simpson Paradox of School Grading in Italy, Research in Economics 63, with Valentino Dardanoni and Aline Pennisi, June 2009

Secondary Effects in Education Transmission: a Finite Mixture Model, with Valentino Dardanoni and Antonio Forcina, revised May 2009

Grading Across Schools, with Valentino Dardanoni and Aline Pennisi, The B.E. Journal of Economic Analysis & Policy: Vol. 9 : Iss. 1 (Topics), Article 16, April 2009

Credit Market Failures and Policy, with Enrico Minelli, Journal of Public Economic Theory 11(3): 363-382, June 2009

Unawareness, Priors and Posteriors, Decisions in Economics and Finance 31(2) 2008

Knowledge Transfer in R&D Outsourcing: an incentive-constrained view, Atti Acc. Scienze Lett. Arti di Palermo, vol. XXIV, 2008

Notes on the Economic History of Linux (Appendix to R&D outsourcing), January 2006

A Note on Comparative Downside Risk Aversion, with Marco Scarsini, Journal of Economic Theory 122 (2005)

The Convexity-Cones Approach to Comparative Risk and Downside Risk, with Marco Scarsini, Mimeo 2002