The core in the housing market model with fractional endowments

Fuente: arXiv
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Autores principales: Yu, Jingsheng, Zhang, Jun
Formato: Preprint
Publicado: 2025
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author Yu, Jingsheng
Zhang, Jun
author_facet Yu, Jingsheng
Zhang, Jun
contents We explore the core concept in a generalization of the housing market model where agents own fractional endowments while maintaining ordinal preferences. Recognizing that individuals are easier than coalitions to block an allocation, we adopt a definition in which individuals block an allocation if their received assignments do not first-order stochastically dominate their endowment, while a non-singleton coalition blocks an allocation if they can reallocate their endowments to obtain new assignments that first-order stochastically dominate their original assignments. Our findings show that, unlike the original model, the strong core may be empty, while the weak core is nonempty. The weak core always contains elements that satisfy equal treatment of equals, but it may not contain elements satisfying equal-endowment no envy.
format Preprint
id arxiv_https___arxiv_org_abs_2508_11151
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle The core in the housing market model with fractional endowments
Yu, Jingsheng
Zhang, Jun
Theoretical Economics
We explore the core concept in a generalization of the housing market model where agents own fractional endowments while maintaining ordinal preferences. Recognizing that individuals are easier than coalitions to block an allocation, we adopt a definition in which individuals block an allocation if their received assignments do not first-order stochastically dominate their endowment, while a non-singleton coalition blocks an allocation if they can reallocate their endowments to obtain new assignments that first-order stochastically dominate their original assignments. Our findings show that, unlike the original model, the strong core may be empty, while the weak core is nonempty. The weak core always contains elements that satisfy equal treatment of equals, but it may not contain elements satisfying equal-endowment no envy.
title The core in the housing market model with fractional endowments
topic Theoretical Economics
url https://arxiv.org/abs/2508.11151