Genève, Suiza
In many jurisdictions the courts use the comparative method when applying domestic law. In some countries the rely on this method occasionally. In others, the highest courts use comparative law in the field of private law in between 10% and more than 25% of their cases. However, it is sometimes still questioned whether it is legitimate for courts to use the comparative methodology, alongside the traditional methods of interpretation, when determining and interpreting domestic law. A very animated discussion among judges of the US Supreme Court has helped putting this issue on the agenda of comparatists, lawyers, and judges. The following contribution analyses the arguments for and against the use of comparative law by the courts. On the basis of court decisions the numerous benefits that judges and courts derive when using the comparative method are demonstrated.