A un sujet que celles de lagent quil repr esente r

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a un sujet que celles de l’agent qu’il repr´ esente (r´ emun´ eration mon´ etaire, . . . ) Montrer comment les sujets se comportent Avantages Possibilit´ es de contrˆ ole ( negationslash = ´ etudes empiriques de terrain)
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Th´ eorie des jeux Th´ eorie des jeux comportementale ethodologie de l’´ economie exp´ erimentale Reproduire au mieux les conditions de la th´ eorie dans le laboratoire Repr´ esenter chaque agent par un sujet amen´ e ` a prendre des d´ ecisions eelles Donner les mˆ emes incitations ` a un sujet que celles de l’agent qu’il repr´ esente (r´ emun´ eration mon´ etaire, . . . ) Montrer comment les sujets se comportent Avantages Possibilit´ es de contrˆ ole ( negationslash = ´ etudes empiriques de terrain) Possibilit´ es de r´ eplications
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Th´ eorie des jeux Th´ eorie des jeux comportementale Fig. 1 – Daniel Kahneman (1934– ) et Vernon L. Smith (1927- ), Prix Nobel d’´ economie en 2002
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Th´ eorie des jeux Th´ eorie des jeux comportementale “Concours de beaut´ e” et profondeur de raisonnement
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Th´ eorie des jeux Th´ eorie des jeux comportementale “Concours de beaut´ e” et profondeur de raisonnement Dans la “Th´ eorie g´ en´ erale de l’emploi, de l’int´ erˆ et et de la monnaie”, Keynes (1936) compare les march´ es d’actions avec les concours de certains journaux (“ beauty contests ”) :
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Th´ eorie des jeux Th´ eorie des jeux comportementale “Concours de beaut´ e” et profondeur de raisonnement Dans la “Th´ eorie g´ en´ erale de l’emploi, de l’int´ erˆ et et de la monnaie”, Keynes (1936) compare les march´ es d’actions avec les concours de certains journaux (“ beauty contests ”) : “Professional investment may be likened to those newspaper competitions in which the com- petitors have to pick out the six prettiest faces from a hundred photographs, the prize being awarded to the competitor whose choice most nearly corresponds to the average preferences of the competitors as a whole ; so that each competitor has to pick, not those faces which he himself finds prettiest, but those which he thinks likeliest to catch the fancy of the other competitors, all of whom are looking at the problem from the same point of view. It is not a case of choosing those which, to the best of one’ s judgment, are really the prettiest, nor even those which the average opinion genuinely thinks the prettiest. We have reached the third degree where we devote our intelligence to anticipating what the average opinion expects the average opinion to be . And there are some, I believe, who practice the fourth, fifth and higher degrees.” (Keynes, 1936, Chapitre 12).
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Th´ eorie des jeux Th´ eorie des jeux comportementale Moulin (1986) : Jeu simple qui permet de mettre en ´ evidence ces raisonnements
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Th´ eorie des jeux Th´ eorie des jeux comportementale Moulin (1986) : Jeu simple qui permet de mettre en ´ evidence ces raisonnements Chaque joueur doit annoncer un nombre dans l’ensemble [0 , 100]
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Th´ eorie des jeux Th´
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