Ten experts question prevailing views that federalism always inhibits the growth of social solidarity. Their comparative study of the evolution of political institutions and welfare states in the six oldest federal states--Australia, Austria, Canada, Germany, Switzerland, the U.S.--reveals that federalism can facilitate and impede social policy development. Development is contingent on several time-dependent factors and this study suggests that federalism may actually protect the welfare state, and welfare states may enhance national integration.
