Countries studied include the United States, Switzerland, Australia, Austria, and Germany as examples of developed industrial societies; India and Malaysia as examples of multilingual and multicultural federations; Belgium and Spain as examples of emerging federal systems that illustrate bicommunal and asymmetrical approaches; and Czechoslovakia and Pakistan as examples of bicommunal federations that have failed. Watts compares the interaction of social diversity and political institutions, distribution of powers and finances, processes contributing to flexibility or rigidity in adjustment, extent of internal symmetry or asymmetry, degree of centralization and decentralization, character of representation in federal institutions, role of constitutions and courts, provisions for constitutional rights and secession, and pathology in federations.
"He has produced a masterful synthesis, a kind of basic comparative handbook which reflects dedicated study of, long experience with, and penetrating insights into the formal and procedural manifestation of federalism n the world today." Daniel J. Elazar, Publius: The Journal of Federalism. "This is a work I recommend without reservation to al those who are interested in Canadian comparative federalism and who especially wish to relate to the Canadian experience to those of other federations." Réjean Pelletier, Politique et societés du Québec.