Constitutional rights protect individuals against government overreaching, but that is not all they do. In different ways and to different degrees, constitutional rights also regulate legal relations among private parties in most legal systems. Rights can have not only a vertical effect, within the hierarchical relationship between citizen and state, but also a horizontal one, on the citizen-to-citizen relationships otherwise governed by private law. In every constitutional system with jud...

In this book, Alec Stone Sweet and Jud Mathews focus on the law and politics of rights protection in democracies, and in human rights regimes in Europe, the Americas, and Africa. After introducing the basic features of modern constitutions, with their emphasis on rights and judicial review, the authors present a theory of proportionality that explains why constitutional judges embraced it. Proportionality analysis is a highly intrusive mode of judicial supervision: it permits state officia...