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...

This paper extends the analysis of the structure of judicial hierarchies to environments in which litigants may have asymmetric information about the merits of the case. We identify equilibria in which the error rate is zero. In each equilibrium, at least one of the inferior courts does not...