The comparative studies in this volume examine the constitutional distribution of exclusive and shared powers and responsibilities among the national and constituent governments of Australia, Belgium, Brazil, Canada, Germany, India, Mexico, Nigeria, Spain, Switzerland, and the United States. Contributors examine the reasons behind each country's system of power distribution, how it works, changes over time, successes or failures, and future trends in the allocation and sharing of power. Contributors include Hugues Dumont (Belgium), J.Isawa Elaigwu (Nigeria), Thomas Fleiner (Switzerland), Xavier Bernadi Gil (Spain), Ellis Katz (USA), Nicolas Lagasse (Belgium), George Mathew (India), Clement Macintyre (Australia), Enric Argullol Murgades (Spain), Manuel Gonzalez Oropeza (Mexico), Marcelo Piancastelli (Brazil), Hans-Peter Schneider (Germany), Richard Simeon (Canada), Marc Van der Hulst (Belgium), Sebastien Van Drooghenbroeck (Belgium), and John M. Williams (Australia). The French edition of this book, Partage des competences dans les pays federaux, is forthcoming.