Amb motiu del tancament d'estiu, la validació de documents es reprendrà a partir del 28 d'agost de 2026. Disculpeu les molèsties.
Con motivo del cierre de verano, la validación de documentos se reanudará a partir del 28 de agosto de 2026. Disculpad las molestias
Due to the summer closure, document validation will resume starting August 28, 2026. We apologize for any inconvenience.

Files

685586.pdf (378.53 KB)

Document type

Article

Version

Accepted version

Publication date

2019-06

All rights reserved

Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/150705

One-seller assignment markets with multi-unit demands: core and competitive equilibrium

Journal Title

Authors

Director/Tutor

Journal ISSN

Volume Title

Related resource

https://doi.org/10.1111/ijet.12166

Abstract

We consider an assignment market with one seller who owns several indivisible heterogeneous goods and many buyers each willing to buy up to a given capacity. In this market, the core contains the Vickrey payoff vector. However, core allocations may not be supported by competitive equilibrium prices, even in a finite replication of the market. We first characterize the convexity of the associated coalitional game and we show that it is a sufficient condition so that the buyers‐optimal core allocation is competitive. With respect to the seller‐optimal core allocation, we provide a characterization of competitiveness by means of buyers' valuations. In addition, we characterize in terms of the valuation matrix the coincidence between the core and the set of competitive equilibrium payoff vectors.

Subject

Agents comercials, Economia de mercat, Models economètrics, Equilibri (Economia)

Subject (English)

Commercial agents, Market economy, Econometric models, Equilibrium (Economics)

Citation

Collections

Articles publicats en revistes (Matemàtica Econòmica, Financera i Actuarial)

Citation

ROBLES JIMÉNEZ, Francisco Javier and NÚÑEZ, Marina (Núñez Oliva). One-seller assignment markets with multi-unit demands: core and competitive equilibrium. International Journal of Economic Theory. 2019. Vol. 15, num. 2, pags. 169-182. ISSN 1742-7355. [consulted: 12 of August of 2026]. Available at: https://hdl.handle.net/2445/150705

Export metadata

JSON - METS

Share record