The novel part of this paper is a model of the principle of proportionality, as the cornerstone of the doctrine of fundamental rights. German law, and with some modifications also the law of the European Community and the European Convention on Human Rights, do not categorically outlaw...

Judges are obliged to give reasons for their decisions. A set of formal and informal norms specifies how this is to be done. These norms serve a whole array of purposes. This paper shows that one substantial effect is on decision quality. The effect can even be demonstrated on an ad hoc basis....

The German Basic Law is open for an interpretation that would allow the Constitutional Court to test the normative adequacy of most statutes. If the court does, it could be modelled as the supervisor of the legislator, i.e., of the agent of the people. The model predicts collusion between the...

The German constitution stands out for the exceptionally powerful position of the Constitutional Court. Any governmental intervention into freedom, and any unequal treatment, are constitutional issues. And any inhabitant can attack any administrative act, and any piece of legislation, in the...

The US Supreme Court has the power of certiorari. It may pick its fights. As a beneficial side effect, the court may allocate its resources, in particular the time and energy the justices spend on a case, to worthy causes. In economic parlance, this discretion makes the court more efficient....