1. Abromeit, H. (1998). Democracy in Europe: Legitimising politics in a non-state polity. Berghahn Publishing Company.
2. Alesina, Alberto and Rodrick, Don (1992) ‘Distribution, political conflict, and economic growth: A simple theory and some empirical evidence’. In: A. Cukierman, Z. Hercowitz and L. Leiderman (eds), Political economy, growth, and business cycles, Cambridge (Mass.): MIT Press: 23–50.
3. Besley, T. (2007). Principled agents? Oxford University Press, Oxford.
4. Bernholz, P. (1990a) ‘The completion of the European market: Opportunities and dangers from an institutional perspective’. In: C. E. P. S. (eds) The Macroeconomics of 1992, C. E. P. S. Paper No. 42, Bruxelles.
5. Bernholz, P. (1990b) ‘Grundzüge einer europäischen Verfassung: Ein Bundesstaat mit begrenzter Zentralgewalt?’. In: Frankfurter Institut (ed.), Argumente zur Europapolitik, 3: 2–12.