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Singer, W.; Pöppe, C.; Hoefer, I.: ¬Das Ende des freien Willens? (2001)
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Pöppe, C.: ¬Der Data Encryption Standard (1995)
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Pöppe, C.: Blitzkarriere im World Wide Web : die Programmiersprache Java (1996)
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Pöppe, C.: ¬Die Geheimfolie (1998)
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Pöppe, C.: Bienenwaben sind wirklich optimal (1999)
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Pöppe, C.: Späte Rehabilitation des Data Encryption Standard (1993)
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Pöppe, C.: ¬Ein großer Brückenschlag in der Algebra (2002)
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Pöppe, C.: Informationsgesellschaft und nachhaltige Entwicklung : Eine von der Bundesregierung eingesetzte Arbeitsgruppe hat erheblich weiter gedacht als so mancher Politiker (1998)
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Pöppe, C.: ¬Die Welt ist klein (2023)
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Pöppe, C.: ¬Das Minderheitsspiel (2005)
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- Content
- "Die Bar »EI Farol« in Santa Fe (New Mexico) ist ein beliebtes Nachtschwärmerziel. Jeden Donnerstagabend gibt es irische Musik, zu anderen Zeiten auch Flamenco. An lauen Sommerabenden wird es häufig so voll, dass einem das Gedränge den Spaß verdirbt. Nehmen wir an, es ist ein lauer Sommerabend, und das Musikprogramm entspricht unserem Geschmack. Sollen wir hingehen? Der Wirtschaftswissenschaftler W Brian Arthur, der am Santa Fe Institute in der gleichnamigen Stadt arbeitet, stellte die Frage in wissenschaftlicher Form, und so ist sie als das »El Farol bar problem« bekannt geworden. Es ist ein überraschend schwieriges Problem, jedenfalls wenn man es vom Standpunkt der klassischen Ökonomen betrachtet. Diese Leute glauben nämlich immer noch an den Homo oeconomicus, jenes fiktive Wesen, das die ihm zugänglichen Informationen fehlerlos verarbeitet und daraufhin unter mehreren Alternativen diejenige auswählt, die seinen Nutzen maximiert. Auf einem Gütermarkt agieren zahlreiche Exemplare dieser Spezies mit nichts als dem eigenen Profit im Sinn und erreichen trotzdem einen für alle optimalen Zustand (Spektrum der Wissenschaft 5/2004, S. 60). Aber wenn diese so ungeheuer rationalen Wesen zur Bar wollen - oh weh! Nehmen wir zur Vereinfachung an, dass sie alle nur das Eine wollen: zur Bar, wenn es nicht zu voll ist, und ansonsten zu Hause bleiben. Wird es heute Abend voll werden? Dazu müssten die Leute aus den verfügbaren Informationen - die für alle gleich sind - Schlüsse ziehen und eine Prognose stellen - die für alle gleich ist, denn sie sind ja alle rational. Also gehen sie entweder alle hin, sodass es voll wird, oder bleiben alle zu Hause und lassen sich einen schönen Abend entgehen. Frustriert sind sie auf jeden Fall.
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Pöppe, C.: ¬Das Ende von Eric Weissteins mathematischer Schatzkiste (2001)
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Henzinger, M.; Pöppe, C.: "Qualität der Suchergebnisse ist unser höchstes Ziel" : Suchmaschine Google (2002)
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Pöppe, C.: Ist jedes Rechteck ein Trapez? : Nein, sagt der normale Mensch. Ja, sgt der Mathematiker. Das ist vielleicht nicht normal - aber richtig (2003)
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