1. Integrated Monopoly and Market Power: System Selling, Compatibility Standards, and Market Csontrol;The Quarterly Review of Economics and Business,1983
2. The Return to the State;American Political Science Review,1988
3. ——— ‘La Dynamique des interrelations technologiques: le cas des technologies de l’information et de la communications’, in D. Foray and C. Freenian (eds.), Tcclinologie et richesses des nations (Paris: Economica, 1992).