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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/33971
Assignment markets with the same core
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[spa] En el contexto de los juegos de asignación bilaterales, estudiamos el conjunto de matrices asociadas a mercados de asignación con el mismo nucleo. Se proporcionan condiciones sobre las entradas de la matriz que aseguran que los juegos de asignación asociados tienen el mismo núcleo. Se prueba que este conjunto de matrices que dan lugar al mismo núcleo forman un semirretículo con un número finito de elementos minimales y un único máximo. Se da una caracterización de estos elementos minimales. También se proporciona una condición suficiente para obtener un retículo.
[eng] In the framework of bilateral assignment games, we study the set of matrices associated with assignment markets with the same core. We state conditions on matrix entries that ensure that the related assignment games have the same core. We prove that the set of matrices leading to the same core form a join-semilattice with a ¯nite number of minimal elements and a unique maximum. We provide a characterization of the minimal elements. A su±cient condition under which the join-semilattice reduces to a lattice is also given.
[eng] In the framework of bilateral assignment games, we study the set of matrices associated with assignment markets with the same core. We state conditions on matrix entries that ensure that the related assignment games have the same core. We prove that the set of matrices leading to the same core form a join-semilattice with a ¯nite number of minimal elements and a unique maximum. We provide a characterization of the minimal elements. A su±cient condition under which the join-semilattice reduces to a lattice is also given.
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MARTÍNEZ DE ALBÉNIZ, F. Javier, NÚÑEZ, Marina (Núñez Oliva) and RAFELS, Carles. Assignment markets with the same core. Documents de treball (Facultat d'Economia i Empresa. Espai de Recerca en Economia). 2010. Vol. E10/239. ISSN 1136-8365. [consulted: 11 of August of 2026]. Available at: https://hdl.handle.net/2445/33971