Baccarat gamblers follow trends rather than adhere to the gambler's fallacy: Analyses of field data from a casino

This study investigated the cognitive biases underlying baccarat gambling behaviors through an analysis of 17,970,830 games played by 6625 customers in a casino. Baccarat, a popular high-stakes game in East Asia, involves predicting the outcome of two hands, where the results are inherently unpredic...

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Main Authors: Hiroyuki Muto, Ryusuke Nakai, Toshiya Murai, Sakiko Yoshikawa, Nobuhito Abe
Format: Article
Language:English
Published: Elsevier 2025-08-01
Series:Acta Psychologica
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0001691825004858
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author Hiroyuki Muto
Ryusuke Nakai
Toshiya Murai
Sakiko Yoshikawa
Nobuhito Abe
author_facet Hiroyuki Muto
Ryusuke Nakai
Toshiya Murai
Sakiko Yoshikawa
Nobuhito Abe
author_sort Hiroyuki Muto
collection DOAJ
description This study investigated the cognitive biases underlying baccarat gambling behaviors through an analysis of 17,970,830 games played by 6625 customers in a casino. Baccarat, a popular high-stakes game in East Asia, involves predicting the outcome of two hands, where the results are inherently unpredictable, similar to the structure of games such as roulette. In contrast to existing theories predicting the emergence of the gambler's fallacy—or negative recency—when the outcome generation mechanism is clearly random, most baccarat gamblers exhibit the opposite bias, demonstrating a tendency toward positive recency. Specifically, customers increasingly placed bets on future outcomes to match past consecutive outcomes as streaks grew longer. This trend-following behavior diminished when streaks were interrupted, ruling out explanations based on the “hot outcome” fallacy, which is typically associated with adaptive behaviors such as resource foraging. Moreover, betting amounts increased slightly but reliably when gamblers followed trends. These findings provide new insights into cognitive biases in gambling, challenge established theories of positive and negative recency, and underscore the importance of considering the unique structural characteristics of specific games when studying gambling behavior. This perspective may also contribute to a deeper understanding of pathological and problem gambling.
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publishDate 2025-08-01
publisher Elsevier
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series Acta Psychologica
spelling doaj-art-2e5ab922cee041f5bf86b94e7c99dbae2025-07-23T05:22:53ZengElsevierActa Psychologica0001-69182025-08-01258105172Baccarat gamblers follow trends rather than adhere to the gambler's fallacy: Analyses of field data from a casinoHiroyuki Muto0Ryusuke Nakai1Toshiya Murai2Sakiko Yoshikawa3Nobuhito Abe4Institute for the Future of Human Society, Kyoto University, Kyoto, Japan; Graduate School of Sustainable System Sciences, Osaka Metropolitan University, Sakai, Japan; Corresponding author at: Graduate School of Sustainable System Sciences, Osaka Metropolitan University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan.Institute for the Future of Human Society, Kyoto University, Kyoto, JapanGraduate School of Medicine, Kyoto University, Kyoto, JapanFaculty of Art and Design, Kyoto University of the Arts, Kyoto, JapanInstitute for the Future of Human Society, Kyoto University, Kyoto, JapanThis study investigated the cognitive biases underlying baccarat gambling behaviors through an analysis of 17,970,830 games played by 6625 customers in a casino. Baccarat, a popular high-stakes game in East Asia, involves predicting the outcome of two hands, where the results are inherently unpredictable, similar to the structure of games such as roulette. In contrast to existing theories predicting the emergence of the gambler's fallacy—or negative recency—when the outcome generation mechanism is clearly random, most baccarat gamblers exhibit the opposite bias, demonstrating a tendency toward positive recency. Specifically, customers increasingly placed bets on future outcomes to match past consecutive outcomes as streaks grew longer. This trend-following behavior diminished when streaks were interrupted, ruling out explanations based on the “hot outcome” fallacy, which is typically associated with adaptive behaviors such as resource foraging. Moreover, betting amounts increased slightly but reliably when gamblers followed trends. These findings provide new insights into cognitive biases in gambling, challenge established theories of positive and negative recency, and underscore the importance of considering the unique structural characteristics of specific games when studying gambling behavior. This perspective may also contribute to a deeper understanding of pathological and problem gambling.http://www.sciencedirect.com/science/article/pii/S0001691825004858BaccaratCasinoGamblingCognitive biasesDecision-makingField study
spellingShingle Hiroyuki Muto
Ryusuke Nakai
Toshiya Murai
Sakiko Yoshikawa
Nobuhito Abe
Baccarat gamblers follow trends rather than adhere to the gambler's fallacy: Analyses of field data from a casino
Acta Psychologica
Baccarat
Casino
Gambling
Cognitive biases
Decision-making
Field study
title Baccarat gamblers follow trends rather than adhere to the gambler's fallacy: Analyses of field data from a casino
title_full Baccarat gamblers follow trends rather than adhere to the gambler's fallacy: Analyses of field data from a casino
title_fullStr Baccarat gamblers follow trends rather than adhere to the gambler's fallacy: Analyses of field data from a casino
title_full_unstemmed Baccarat gamblers follow trends rather than adhere to the gambler's fallacy: Analyses of field data from a casino
title_short Baccarat gamblers follow trends rather than adhere to the gambler's fallacy: Analyses of field data from a casino
title_sort baccarat gamblers follow trends rather than adhere to the gambler s fallacy analyses of field data from a casino
topic Baccarat
Casino
Gambling
Cognitive biases
Decision-making
Field study
url http://www.sciencedirect.com/science/article/pii/S0001691825004858
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