The Potential Benefits and Costs of Public Private Partnerships in the Transport Sector with an Application to the Turkish PPP Law, with David Martimort, The World Bank, 2011.

BLOG - Anti-Corruption Project; Progetto Integrita', Scuola Superiore della Pubblica Amministratione (Italian School of Public Administration, SSPA)  http://blogintegrita.sspa.it/ (Italian version) http://blogintegrity.sspa.it (English version)

Green Paper on the Modernisation of EU Public Procurement Policy: Towards a More Efficient European Procurement Market. Answers by the University of Rome Tor Vergata Procurement Group.

Analysis of Sectors Concerned by Service Concessions in the Framework of the Impact assessment of a Possible EU Legislation Concerning Service Concessions, Centre for Strategy and Evaluation Services (CSES) for European Commission DG MARKT.

Investigation on The Rolling Stock Market, 2008, UK Competition Commission.

Best Practices on Contract Design in Public-Private Partnerships, with Giancarlo Spagnolo and Mercedez Vellez, The World Bank, 2007.

Contract Design in Public-Private Partnerships, with Giancarlo Spagnolo and Mercedez Vellez, The World Bank, 2007. Modelling Changes to Consumer Welfare Caused by Reduced Price Transparency, Financial Service Authority, Occasional Paper 26, August 2007.

Measuring Consumer Detriment under Conditions of Imperfect Information”, with John Hunter, Christos Ioannidis and Len Skerratt, Office of Fair Trading, Research Paper 20, October 2001.