Tournament incentive schemes offer payments dependent on relative performance and are intended thereby to motivate agents to exert productive effort. Unfortunately, however, an agent may also be tempted to degrade the production of his competitors in order to improve the own relative position....

Withdrawal rights protect buyers in distance selling, for example when ordering via the Internet. After introducing such a law in Germany the proportion of returned goods drastically increased although most sellers had already offered a return option before. We experimentally investigate...

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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...