- Padre ricco padre povero: Quello che i ricchi insegnano ai figli sul denaro
- The uniting of Europe : political, social, and economical forces, 1950-1957
- The idea of Europe
- Dallo Stato all'Europa : idee politiche e istituzioni
The Uniting of Europe' is not only an empirical study of the dynamics of the early European integration process from the Treaty of Paris in 1951 to the Treaty of Rome in 1957. With this seminal work, Ernst Haas also laid the groundwork for theorizing the European integration process from a neo-functional perspective. He developed the famous concept of 'spill-over', i.e. the idea that integration in one functional area would quasi-automatically lead to further integration in other areas. By choosing the European Coal and Steel Community (ECSC) he could showcase how close co-operation in various economic sectors may trigger the shifting of loyalties, interests and expectations of different political, social and economic actors from national level towards a supranational institution. While focusing on an analysis of selected groups, institutions and ideologies specific to the European setting, he derived from the unique experience of the ECSC some general propositions about the conditions under which the transfer of national sovereignty to a larger supranational political community can happen.