Diffusion of Responsibility in Collective Decision Making

Fuente: arXiv
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Autores principales: Naumov, Pavel, Tao, Jia
Formato: Preprint
Publicado: 2025
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author Naumov, Pavel
Tao, Jia
author_facet Naumov, Pavel
Tao, Jia
contents The term "diffusion of responsibility'' refers to situations in which multiple agents share responsibility for an outcome, obscuring individual accountability. This paper examines this frequently undesirable phenomenon in the context of collective decision-making mechanisms. The work shows that if a decision is made by two agents, then the only way to avoid diffusion of responsibility is for one agent to act as a "dictator'', making the decision unilaterally. In scenarios with more than two agents, any diffusion-free mechanism is an "elected dictatorship'' where the agents elect a single agent to make a unilateral decision. The technical results are obtained by defining a bisimulation of decision-making mechanisms, proving that bisimulation preserves responsibility-related properties, and establishing the results for a smallest bisimular mechanism.
format Preprint
id arxiv_https___arxiv_org_abs_2506_07935
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Diffusion of Responsibility in Collective Decision Making
Naumov, Pavel
Tao, Jia
Multiagent Systems
Artificial Intelligence
Computer Science and Game Theory
The term "diffusion of responsibility'' refers to situations in which multiple agents share responsibility for an outcome, obscuring individual accountability. This paper examines this frequently undesirable phenomenon in the context of collective decision-making mechanisms. The work shows that if a decision is made by two agents, then the only way to avoid diffusion of responsibility is for one agent to act as a "dictator'', making the decision unilaterally. In scenarios with more than two agents, any diffusion-free mechanism is an "elected dictatorship'' where the agents elect a single agent to make a unilateral decision. The technical results are obtained by defining a bisimulation of decision-making mechanisms, proving that bisimulation preserves responsibility-related properties, and establishing the results for a smallest bisimular mechanism.
title Diffusion of Responsibility in Collective Decision Making
topic Multiagent Systems
Artificial Intelligence
Computer Science and Game Theory
url https://arxiv.org/abs/2506.07935