In the theory of two-sided matching markets there are two well-known models: the marriage model (where no money is involved) and the assignment model (where payments are involved). Roth and Sotomayor (1990) asked for an explanation for the similarities in behavior between those two models. We address this question by introducing a common generalization that preserves the two important features: the existence of a stable outcome and the lattice property of the set of stable outcomes.
ResuméDans la théorie des "agences matrimonialesà deux niveaux" il existe deux modèles bien connus: le modèle des "mariages" (sans transactions financières) et celui des "allocations" (avec paiement). Roth et Sotomayor (1990) ont soulevé le problème de trouver une bonne explication qui rende compte des similarités dans le comportement de ces deux modèles. Nous nous occupons de cette question en introduisant une généralisation commune qui conserve les deux aspects importants: l'existence d'un résultat stable et la structure de treillis de l'ensemble des résultats stables.
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