Dynamic Resource Allocation with Karma: An Experimental Study

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Main Authors: Elokda, Ezzat, Bolognani, Saverio, Dörfler, Florian, Nax, Heinrich H.
Format: Preprint
Published: 2024
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author Elokda, Ezzat
Bolognani, Saverio
Dörfler, Florian
Nax, Heinrich H.
author_facet Elokda, Ezzat
Bolognani, Saverio
Dörfler, Florian
Nax, Heinrich H.
contents A system of non-tradable credits that flow between individuals like karma, hence proposed under that name, is a mechanism for repeated resource allocation that comes with attractive efficiency and fairness properties, in theory. In this study, we test karma in an online experiment in which human subjects repeatedly compete for a resource with time-varying and stochastic individual preferences or urgency to acquire the resource. We confirm that karma has significant and sustained welfare benefits even in a population with no prior training. We identify mechanism usage in contexts with sporadic high urgency, more so than with frequent moderate urgency, and implemented as a simple (binary) karma bidding scheme as particularly effective for welfare improvements: relatively larger aggregate efficiency gains are realized that are (almost) Pareto superior. These findings provide guidance for further testing and for future implementation plans of such mechanisms in the real world.
format Preprint
id arxiv_https___arxiv_org_abs_2404_02687
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Dynamic Resource Allocation with Karma: An Experimental Study
Elokda, Ezzat
Bolognani, Saverio
Dörfler, Florian
Nax, Heinrich H.
General Economics
Economics
Computer Science and Game Theory
Systems and Control
A system of non-tradable credits that flow between individuals like karma, hence proposed under that name, is a mechanism for repeated resource allocation that comes with attractive efficiency and fairness properties, in theory. In this study, we test karma in an online experiment in which human subjects repeatedly compete for a resource with time-varying and stochastic individual preferences or urgency to acquire the resource. We confirm that karma has significant and sustained welfare benefits even in a population with no prior training. We identify mechanism usage in contexts with sporadic high urgency, more so than with frequent moderate urgency, and implemented as a simple (binary) karma bidding scheme as particularly effective for welfare improvements: relatively larger aggregate efficiency gains are realized that are (almost) Pareto superior. These findings provide guidance for further testing and for future implementation plans of such mechanisms in the real world.
title Dynamic Resource Allocation with Karma: An Experimental Study
topic General Economics
Economics
Computer Science and Game Theory
Systems and Control
url https://arxiv.org/abs/2404.02687