Depression and forecast accuracy: Evidence from the 2010 FIFA World Cup
AbstractBefore and during the 2010 Soccer World Cup, participants made probabilistic forecasts of the outcomes of the tournament. We examine the relationship between their depression levels and their performance at this forecasting task. Across two different waves of predictions and with multiple measures and components of prediction accuracy, we find that depressed forecasters were less accurate. The poorer accuracy amongst the more depressed forecasters was primarily driven by a neglect of base rate probabilities: the depressed participants assigned probabilities that departed from the base rates more substantially, particularly for low base rate events. Given the high incidence of depression in the workforce, the importance of judgmental probabilistic forecasting in many settings, and the fact that we may be the first to look at the depression-accuracy relationship using a real-world prediction task involving exogenous uncertainty, these findings may have important implications for both theory and practice.
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Bibliographic InfoArticle provided by Elsevier in its journal International Journal of Forecasting.
Volume (Year): 29 (2013)
Issue (Month): 1 ()
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Web page: http://www.elsevier.com/locate/ijforecast
Judgmental forecasting; Prediction; Probability; Depressive realism; Depression;
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- Yates, J. Frank & Zhu, Ying & Ronis, David L. & Wang, Deng-Feng & Shinotsuka, Hiromi & Toda, Masanao, 1989. "Probability judgment accuracy: China, Japan, and the United States," Organizational Behavior and Human Decision Processes, Elsevier, vol. 43(2), pages 145-171, April.
- Wright, George & Ayton, Peter, 1989. "Judgemental probability forecasts for personal and impersonal events," International Journal of Forecasting, Elsevier, vol. 5(1), pages 117-125.
- Peter Ayton & Dilek Onkal & Lisa McReynolds, 2011. "Effects of ignorance and information on judgments and decisions," Judgment and Decision Making, Society for Judgment and Decision Making, vol. 6(5), pages 381-391, July.
- Lawrence, Michael & Goodwin, Paul & O'Connor, Marcus & Onkal, Dilek, 2006. "Judgmental forecasting: A review of progress over the last 25 years," International Journal of Forecasting, Elsevier, vol. 22(3), pages 493-518.
- Murphy, Allan H. & Winkler, Robert L., 1992. "Diagnostic verification of probability forecasts," International Journal of Forecasting, Elsevier, vol. 7(4), pages 435-455, March.
- Forrest, David & Goddard, John & Simmons, Robert, 2005. "Odds-setters as forecasters: The case of English football," International Journal of Forecasting, Elsevier, vol. 21(3), pages 551-564.
- Scheibehenne, Benjamin & Broder, Arndt, 2007. "Predicting Wimbledon 2005 tennis results by mere player name recognition," International Journal of Forecasting, Elsevier, vol. 23(3), pages 415-426.
- Andersson, Patric & Edman, Jan & Ekman, Mattias, 2005. "Predicting the World Cup 2002 in soccer: Performance and confidence of experts and non-experts," International Journal of Forecasting, Elsevier, vol. 21(3), pages 565-576.
- Radzevick, Joseph R. & Moore, Don A., 2008. "Myopic biases in competitions," Organizational Behavior and Human Decision Processes, Elsevier, vol. 107(2), pages 206-218, November.
- Onkal, Dilek & Yates, J. Frank & Simga-Mugan, Can & Oztin, Sule, 2003. "Professional vs. amateur judgment accuracy: The case of foreign exchange rates," Organizational Behavior and Human Decision Processes, Elsevier, vol. 91(2), pages 169-185, July.
- Camerer, Colin F, 1987. "Do Biases in Probability Judgment Matter in Markets? Experimental Evidence," American Economic Review, American Economic Association, vol. 77(5), pages 981-97, December.
- Forrest, David & Simmons, Robert, 2000. "Forecasting sport: the behaviour and performance of football tipsters," International Journal of Forecasting, Elsevier, vol. 16(3), pages 317-331.
- Robert L. Winkler & Roy M. Poses, 1993. "Evaluating and Combining Physicians' Probabilities of Survival in an Intensive Care Unit," Management Science, INFORMS, vol. 39(12), pages 1526-1543, December.
- Boulier, Bryan L. & Stekler, H. O., 1999. "Are sports seedings good predictors?: an evaluation," International Journal of Forecasting, Elsevier, vol. 15(1), pages 83-91, February.
- Au, Kevin & Chan, Forrest & Wang, Denis & Vertinsky, Ilan, 2003. "Mood in foreign exchange trading: Cognitive processes and performance," Organizational Behavior and Human Decision Processes, Elsevier, vol. 91(2), pages 322-338, July.
- Yates, J. Frank & McDaniel, Linda S. & Brown, Eric S., 1991. "Probabilistic forecasts of stock prices and earnings: The hazards of nascent expertise," Organizational Behavior and Human Decision Processes, Elsevier, vol. 49(1), pages 60-79, June.
- Song, ChiUng & Boulier, Bryan L. & Stekler, Herman O., 2007. "The comparative accuracy of judgmental and model forecasts of American football games," International Journal of Forecasting, Elsevier, vol. 23(3), pages 405-413.
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