个性化算法建议在竞争市场中作为策略信号：Cournot 博弈实验研究

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Abstract:As algorithms increasingly mediate competitive decision-making, their influence extends beyond individual outcomes to shaping strategic market dynamics. In our experiment, we examined how algorithmic advice affects human behavior in a classic economic game with a unique, non-collusive, and analytically traceable equilibrium. Participants (N = 129) played a Cournot quantity competition with equilibrium-aligned or strategically biased algorithmic recommendations. While individualized equilibrium advice supported stable convergence, collusively downward-biased advice led to sustained underproduction and supracompetitive profits - hallmarks of tacit collusion. Participants' quantities converged faster and more consistently toward individualized than collective equilibrium advice, potentially due to an objective quality advantage or greater perceived ownership of the former. These findings demonstrate that algorithmic advice can function as a strategic signal, shaping coordination even without explicit communication. The results echo real-world concerns about algorithmic collusion and underscore the need for careful design and oversight of algorithmic decision-support systems in competitive environments.

Subjects:	Human-Computer Interaction (cs.HC); Artificial Intelligence (cs.AI); Computers and Society (cs.CY); Computer Science and Game Theory (cs.GT); General Economics (econ.GN)
Cite as:	arXiv:2511.09454 [cs.HC]
	(or arXiv:2511.09454v3 [cs.HC] for this version)
	https://doi.org/10.48550/arXiv.2511.09454 arXiv-issued DOI via DataCite

Submission history

From: Tobias R. Rebholz [view email]
[v1] Wed, 12 Nov 2025 16:14:27 UTC (764 KB)
[v2] Mon, 31 Aug 2026 19:46:28 UTC (1,178 KB)
[v3] Tue, 10 Nov 2026 19:37:11 UTC (1,115 KB)