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Sponsored Design Multi-Agent AI Systems Using MCP and A2A: Engineer your own Pyt Design Multi-Agent AI Systems Using MCP and A2A: Engineer your own Pyt

Author

Van-Quy Nguyen

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2 papers indexed here

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Preprint Aug 2026

Suspicious Perfection: Rating Rewards, Credibility Inversion, and Information Loss

Platforms use rating bonuses and badges to reward good sellers. When ratings can be inflated, stronger rewards can instead weaken the information available to buyers. We study an initially informative rating system in which sellers can pay to raise their displayed score and buyers rationally account for manipulation. M...

Van-Quy Nguyen · 0 citations
Review Aug 2026

Rating Manipulation: Credibility Inversion and Audit Leakage

Online ratings turn a long review history into one public number. This makes sellers easier to compare, but it also gives them a single clear target to manipulate. We study a low-quality seller who can add fake reviews carrying different scores, buyers who infer quality from the displayed average, and a platform that c...

Van-Quy Nguyen · 0 citations

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