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Une taxe "pigouvienne" vise à : A - Réduire le coût marginal social de sorte à le placer à un niveau inférieur au marginal privé et ainsi maximiser l'optimum social.B - Accroître le coût marginal privé de sorte à la placer à un niveau inférieur au coût social et ainsi maximiser l'optimum social.C - Accroître le coût marginal privé de sorte à la placer à un niveau inférieur au coût social et ainsi rapprocher l'équilibre de marché de l'optimum social.D - Réduire le coût marginal privé de sorte à l'égaliser avec le coût marginal social et ainsi rapprocher l'équilibre de marché et l'optimum social.

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