A very neat, thorough and interesting study for all scholars trying to understand the working of 'shared powers', may it be at the international, supranational or national level. -- Dietmar Braun Swiss Political Science Review A book of substantial interest and considerable scholarship. -- Peter Leslie International History Review A very impressive and thought-provoking book that contributes to the research stream represented by books on the impact of European Courts on European 'constitutional' politics. -- Donald W. Jackson Law and Politics Book Review Professor Goldstein does an admirable job bringing the European Union into comparative context. -- Erik Jones Acta Politica A well-focused application of comparative federalism. -- R. Daniel Kelemen Journal of Politics 2003 A very welcome addition to the literature on federal systems. -- Paolo Dardanelli Regional and Federal Studies An excellent example of the successful merger of the interests of comparative history, politics, and jurisprudence... The writing is clear, the argumentation is fair and precise, and the logic is lucid. The book makes a significant contribution to the field of comparative federalism and should be widely accepted a s a basic reference work for study in this field. -- Jim Seroka Publius 2002