Optimal Online Bookmaking for Binary Games

Fuente: arXiv
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Main Authors: Bhatt, Alankrita, Ordentlich, Or, Sabag, Oron
Format: Preprint
Published: 2025
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author Bhatt, Alankrita
Ordentlich, Or
Sabag, Oron
author_facet Bhatt, Alankrita
Ordentlich, Or
Sabag, Oron
contents In online betting, the bookmaker can update the payoffs it offers on a particular event many times before the event takes place, and the updated payoffs may depend on the bets accumulated thus far. We study the problem of bookmaking with the goal of maximizing the return in the worst-case, with respect to the gamblers' behavior and the event's outcome. We formalize this problem as the \emph{Optimal Online Bookmaking game}, and provide the exact solution for the binary case. To this end, we develop the optimal bookmaking strategy, which relies on a new technique called bi-balancing trees, that assures that the house loss is the same for all \emph{decisive} betting sequences, where the gambler bets all its money on a single outcome in each round.
format Preprint
id arxiv_https___arxiv_org_abs_2501_06923
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Optimal Online Bookmaking for Binary Games
Bhatt, Alankrita
Ordentlich, Or
Sabag, Oron
Computer Science and Game Theory
Information Theory
Machine Learning
Optimization and Control
In online betting, the bookmaker can update the payoffs it offers on a particular event many times before the event takes place, and the updated payoffs may depend on the bets accumulated thus far. We study the problem of bookmaking with the goal of maximizing the return in the worst-case, with respect to the gamblers' behavior and the event's outcome. We formalize this problem as the \emph{Optimal Online Bookmaking game}, and provide the exact solution for the binary case. To this end, we develop the optimal bookmaking strategy, which relies on a new technique called bi-balancing trees, that assures that the house loss is the same for all \emph{decisive} betting sequences, where the gambler bets all its money on a single outcome in each round.
title Optimal Online Bookmaking for Binary Games
topic Computer Science and Game Theory
Information Theory
Machine Learning
Optimization and Control
url https://arxiv.org/abs/2501.06923