Please use this identifier to cite or link to this item: https://doi.org/10.1007/s10899-009-9145-9
Title: Benford's law and number selection in fixed-odds numbers game
Authors: Chou, M.C. 
Kong, Q.
Teo, C.-P. 
Wang, Z.
Zheng, H.
Keywords: Benford's law
Customer segmentation
Numbers games
Small-number phenomenon
Issue Date: 2009
Source: Chou, M.C., Kong, Q., Teo, C.-P., Wang, Z., Zheng, H. (2009). Benford's law and number selection in fixed-odds numbers game. Journal of Gambling Studies 25 (4) : 503-521. ScholarBank@NUS Repository. https://doi.org/10.1007/s10899-009-9145-9
Abstract: In fixed-odds numbers games, the prizes and the odds of winning are known at the time of placement of the wager. Both players and operators are subject to the vagaries of luck in such games. Most game operators limit their liability exposure by imposing a sales limit on the bets received for each bet type, at the risk of losing the rejected bets to the underground operators. This raises a question-how should the game operator set the appropriate sales limit? We argue that the choice of the sales limit is intimately related to the ways players select numbers to bet on in the games. There are ample empirical evidences suggesting that players do not choose all numbers with equal probability, but have a tendency to bet on (small) numbers that are closely related to events around them (e. g., birth dates, addresses, etc.). To the best of our knowledge, this is the first paper to quantify this phenomenon and examine its relation to the classical Benford's law. We use this connection to develop a choice model, and propose a method to set the appropriate sales limit in these games. © Springer Science+Business Media, LLC 2009.
Source Title: Journal of Gambling Studies
URI: http://scholarbank.nus.edu.sg/handle/10635/44067
ISSN: 10505350
DOI: 10.1007/s10899-009-9145-9
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