Decentralizability of efficient allocations with heterogenous forecasts

Do price forecasts of rational economic agents need to coincide in perfectly competitive complete markets? To address this question, we define an efficient temporary equilibrium (ETE) within the framework of a two period economy. Although an ETE allocation is intertemporally efficient and is obtaine...

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Bibliographic Details
Main Authors: CHATTERJI, Shurojit, KAJII, Atsushi
Format: text
Language:English
Published: Institutional Knowledge at Singapore Management University 2023
Subjects:
Online Access:https://ink.library.smu.edu.sg/soe_research/2428
https://ink.library.smu.edu.sg/context/soe_research/article/3427/viewcontent/DecentralizabilityEA_sv.pdf
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Institution: Singapore Management University
Language: English
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Summary:Do price forecasts of rational economic agents need to coincide in perfectly competitive complete markets? To address this question, we define an efficient temporary equilibrium (ETE) within the framework of a two period economy. Although an ETE allocation is intertemporally efficient and is obtained by perfect competition, it can arise without the agents forecasts being completely coordinated on a perfect foresight price. Nevertheless, it entails price forecasts delicately related with each other: we show that regardless of the number of agents, there is a one dimensional set of such Pareto efficient allocations for generic endowments.