Justin O. Frosini is Assistant Professor of Public Law at the Bocconi University in Milan, director of the Center for Constitutional Studies and Democratic Development (CCSDD) in Bologna and Adjunct Professor of Constitutional Law at the Johns Hopkins SAIS, Europe. He is the author of Constitutional Preambles: At a Crossroads between Politics and Law (2012) as well as several articles and book chapters in the field of comparative constitutional law with particular attention for federalism, regionalism and devolution, constitutional justice and forms of government. Francesco Biagi is a postdoctoral research fellow at the University of Bologna’s School of Law and researcher at the Center for Constitutional Studies and Democratic Development (CCSDD). He is the author of several articles and book chapters focusing on transitions to democracy, constitution-building, constitutional adjudication and electoral justice. In 2012 his research on "Constitutional Courts in Democratic Transitions: The Cases of Italy, Spain and the Czech Republic" was awarded best Ph.D. thesis in Constitutional Law at the University of Ferrara by the Istituto Universitario di Studi Superiori (IUSS).