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arXiv · 2509.02800

Too Noisy to Collude? Algorithmic Collusion Under Laplacian Noise

Niuniu Zhang
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Abstract

The rise of autonomous pricing systems has sparked growing concern over algorithmic collusion in markets from retail to housing. This paper examines controlled information quality as an ex ante policy lever: by reducing the fidelity of data that pricing algorithms draw on, regulators can frustrate collusion before supracompetitive prices emerge. We show, first, that information quality is the central driver of competitive outcomes, shaping prices, profits, and consumer welfare. Second, we demonstrate that collusion can be slowed or destabilized by injecting carefully calibrated noise into pooled market data, yielding a feasibility region where intervention disrupts cartels without undermining legitimate pricing. Together, these results highlight information control as a lightweight yet practical lever to blunt digital collusion at its source.

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Niuniu Zhang. 2025-09-02. Too Noisy to Collude? Algorithmic Collusion Under Laplacian Noise. https://arxiv.org/abs/2509.02800

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