BALDWIN, R. and R. WYPLOSZ, The economics of European Integration, 5th Ed. 2015, Part: I,II: point 6 and 7, IV, V.

Letture aggiuntive:
- Campos, Nauro, Coricelli, Fabrizio and Luigi Moretti, 2014. "Economic Growth and Political Integration: Estimating the Benefits from Membership in the European Union Using the Synthetic Counterfactuals Method," CEPR Discussion Papers 9968.
Freely Downloadable version :

Campos, Nauro F & Coricelli, Fabrizio & Moretti, Luigi, 2014. "Economic Growth and Political Integration: Estimating the Benefits from Membership in the European Union Using the Synthetic Counterfactuals Method," IZA Discussion Papers 8162, Institute for the Study of Labor (IZA).

- Daniel Brou and Michele Ruta Economic Integration, Political Integration or Both? Journal of the European Economic Association, 2011, vol. 9, issue 6, 1143-1167

- Alberto Alesina, Enrico Spolaore and Romain Wacziarg, 1997. "Economic Integration and Political Disintegration," NBER Working Papers 6163, National Bureau of Economic Research, Inc.

- Luigi Guiso, Paola Sapienza, and Luigi Zingales, 2014 ‘’ Monnet’s Error?’’ Brookings Papers on Economic Activity.