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A bayesian market maker

Published: 04 June 2012 Publication History

Abstract

Ensuring sufficient liquidity is one of the key challenges for designers of prediction markets. Variants of the logarithmic market scoring rule (LMSR) have emerged as the standard. LMSR market makers are loss-making in general and need to be subsidized. Proposed variants, including liquidity sensitive market makers, suffer from an inability to react rapidly to jumps in population beliefs. In this paper we propose a Bayesian Market Maker for binary outcome (or continuous 0-1) markets that learns from the informational content of trades. By sacrificing the guarantee of bounded loss, the Bayesian Market Maker can simultaneously offer: (1) significantly lower expected loss at the same level of liquidity, and, (2) rapid convergence when there is a jump in the underlying true value of the security. We present extensive evaluations of the algorithm in experiments with intelligent trading agents and in human subject experiments. Our investigation also elucidates some general properties of market makers in prediction markets. In particular, there is an inherent tradeoff between adaptability to market shocks and convergence during market equilibrium.

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cover image ACM Conferences
EC '12: Proceedings of the 13th ACM Conference on Electronic Commerce
June 2012
1016 pages
ISBN:9781450314152
DOI:10.1145/2229012
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Publication History

Published: 04 June 2012

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Author Tags

  1. bayesian learning
  2. liquidity
  3. market making

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EC '12
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EC '12: ACM Conference on Electronic Commerce
June 4 - 8, 2012
Valencia, Spain

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Overall Acceptance Rate 664 of 2,389 submissions, 28%

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  • (2023)SoK: Decentralized Exchanges (DEX) with Automated Market Maker (AMM) ProtocolsACM Computing Surveys10.1145/357063955:11(1-50)Online publication date: 9-Feb-2023
  • (2023)A logarithmic market scoring rule agent-based model to evaluate prediction marketsJournal of Evolutionary Economics10.1007/s00191-023-00822-w33:4(1303-1343)Online publication date: 13-Jun-2023
  • (2020)Deep Reinforcement Learning for Market MakingProceedings of the 19th International Conference on Autonomous Agents and MultiAgent Systems10.5555/3398761.3399018(1892-1894)Online publication date: 5-May-2020
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  • (2018)Market Making via Reinforcement LearningProceedings of the 17th International Conference on Autonomous Agents and MultiAgent Systems10.5555/3237383.3237450(434-442)Online publication date: 9-Jul-2018
  • (2018)Optimizing the liquidity parameter of logarithmic market scoring rules prediction marketsJournal of Modelling in Management10.1108/JM2-06-2017-006613:3(736-754)Online publication date: 13-Aug-2018
  • (2016)A symbolic closed-form solution to sequential market making with inventoryProceedings of the Twenty-Fifth International Joint Conference on Artificial Intelligence10.5555/3061053.3061124(3609-3615)Online publication date: 9-Jul-2016
  • (2016)An empirical game-theoretic analysis of price discovery in prediction marketsProceedings of the Twenty-Fifth International Joint Conference on Artificial Intelligence10.5555/3060621.3060693(510-516)Online publication date: 9-Jul-2016
  • (2016)Trading on a rigged gameProceedings of the Twenty-Fifth International Joint Conference on Artificial Intelligence10.5555/3060621.3060644(158-164)Online publication date: 9-Jul-2016
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