Abstract
In a Fisher market, a market maker sells m items to n potential buyers. The buyers submit their utility functions and money endowments to the market maker, who, upon receiving submitted information, derives market equilibrium prices and allocations of its items. While agents may benefit by misreporting their private information, we show that the percentage of improvement by a unilateral strategic play, called incentive ratio, is rather limited—it is less than 2 for linear markets and at most \(e^{1/e}\thickapprox 1.445\) for Cobb-Douglas markets. We further prove that both ratios are tight.
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Chen, N., Deng, X., Zhang, H., Zhang, J. (2012). Incentive Ratios of Fisher Markets. In: Czumaj, A., Mehlhorn, K., Pitts, A., Wattenhofer, R. (eds) Automata, Languages, and Programming. ICALP 2012. Lecture Notes in Computer Science, vol 7392. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-31585-5_42
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DOI: https://doi.org/10.1007/978-3-642-31585-5_42
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