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Submitted by IMAGINARY on
Angenommen, eine Gruppe von Einzelpersonen möch- te unter verschiedenen Optionen wählen, zum Bei- spiel einen von mehreren Kandidaten für ein poli- tisches Amt oder den besten Teilnehmer einer Eis- kunstlaufmeisterschaft. Man könnte fragen: Was ist die beste Methode, einen Sieger in dem Sinne zu wäh- len, dass er die individuellen Präferenzen der Grup- penmitglieder am besten widerspiegelt?