Journal
COGNITION
Volume 131, Issue 2, Pages 173-180Publisher
ELSEVIER
DOI: 10.1016/j.cognition.2014.01.002
Keywords
Hot-hand fallacy; Gamblers' fallacy; Sports betting
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People suffering from the hot-hand fallacy unreasonably expect winning streaks to continue whereas those suffering from the gamblers' fallacy unreasonably expect losing streaks to reverse. We took 565,915 sports bets made by 776 online gamblers in 2010 and analyzed all winning and losing streaks up to a maximum length of six. People who won were more likely to win again (apparently because they chose safer odds than before) whereas those who lost were more likely to lose again (apparently because they chose riskier odds than before). However, selection of safer odds after winning and riskier ones after losing indicates that online sports gamblers expected their luck to reverse: they suffered from the gamblers' fallacy. By believing in the gamblers' fallacy, they created their own hot hands. (C) 2014 The Authors. Published by Elsevier B.V.
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