On the Tension Between Stability and Efficiency in Two-Way Flow Network with Small Decay

The tension between stability and efficiency in network formation models refers to a common finding in the literature of social networks: equilibrium networks and efficient networks often exhibit substantially different characteristics. In this note, I show that this tension can be partially reconci...

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Main Author: Banchongsan Charoensook
Format: Article
Language:English
Published: Dunarea de Jos University of Galati 2025-04-01
Series:Annals of Dunarea de Jos University. Fascicle I : Economics and Applied Informatics
Subjects:
Online Access:http://eia.feaa.ugal.ro/images/eia/2025_1/Banchongsan_Charoensook.pdf
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author Banchongsan Charoensook
author_facet Banchongsan Charoensook
author_sort Banchongsan Charoensook
collection DOAJ
description The tension between stability and efficiency in network formation models refers to a common finding in the literature of social networks: equilibrium networks and efficient networks often exhibit substantially different characteristics. In this note, I show that this tension can be partially reconciled in the two-way flow model of network formation with partner heterogeneity by introducing a small degree of information decay. This result extends a similar finding established for homogeneous agents in Charoensook (2025). Thus, this note contributes to the literature by demonstrating that the reconciliation of stability and efficiency through a small decay assumption is not confined to models with agent homogeneity but also holds in more general network settings.
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series Annals of Dunarea de Jos University. Fascicle I : Economics and Applied Informatics
spelling doaj-art-84c5532d784a41aab12fcce0d336a2472025-08-20T02:13:31ZengDunarea de Jos University of GalatiAnnals of Dunarea de Jos University. Fascicle I : Economics and Applied Informatics1584-04092025-04-0131116216910.35219/eai15840409496On the Tension Between Stability and Efficiency in Two-Way Flow Network with Small DecayBanchongsan Charoensook0Keimyung University, Daegu, South KoreaThe tension between stability and efficiency in network formation models refers to a common finding in the literature of social networks: equilibrium networks and efficient networks often exhibit substantially different characteristics. In this note, I show that this tension can be partially reconciled in the two-way flow model of network formation with partner heterogeneity by introducing a small degree of information decay. This result extends a similar finding established for homogeneous agents in Charoensook (2025). Thus, this note contributes to the literature by demonstrating that the reconciliation of stability and efficiency through a small decay assumption is not confined to models with agent homogeneity but also holds in more general network settings.http://eia.feaa.ugal.ro/images/eia/2025_1/Banchongsan_Charoensook.pdfnetwork formationnash networktwo-way flow networkagent heterogeneityefficient network
spellingShingle Banchongsan Charoensook
On the Tension Between Stability and Efficiency in Two-Way Flow Network with Small Decay
Annals of Dunarea de Jos University. Fascicle I : Economics and Applied Informatics
network formation
nash network
two-way flow network
agent heterogeneity
efficient network
title On the Tension Between Stability and Efficiency in Two-Way Flow Network with Small Decay
title_full On the Tension Between Stability and Efficiency in Two-Way Flow Network with Small Decay
title_fullStr On the Tension Between Stability and Efficiency in Two-Way Flow Network with Small Decay
title_full_unstemmed On the Tension Between Stability and Efficiency in Two-Way Flow Network with Small Decay
title_short On the Tension Between Stability and Efficiency in Two-Way Flow Network with Small Decay
title_sort on the tension between stability and efficiency in two way flow network with small decay
topic network formation
nash network
two-way flow network
agent heterogeneity
efficient network
url http://eia.feaa.ugal.ro/images/eia/2025_1/Banchongsan_Charoensook.pdf
work_keys_str_mv AT banchongsancharoensook onthetensionbetweenstabilityandefficiencyintwowayflownetworkwithsmalldecay