Depression and Forecast Accuracy: Evidence from the 2010 FIFA World Cup

37 Pages Posted: 7 Feb 2011 Last revised: 29 May 2012

See all articles by Kriti Jain

Kriti Jain

Independent

Joseph Neil Bearden

INSEAD - Decision Sciences

Allan Filipowicz

Independent

Date Written: May 29, 2012

Abstract

Before and during the 2010 Soccer World Cup, participants made probabilistic forecasts for the outcomes of the tournament. We examine the relationship between their depression levels and their performance in 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 neglect for base rate probabilities: The depressed participants assigned probabilities that departed more substantially from the base rates, 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 that we may be the first to look at depression- accuracy relationship using a real-world prediction task involving exogenous uncertainty, these findings may have important implications for both theory and practice.

Keywords: Judgmental Forecasting, Prediction, Probability, Depressive Realism, Depression

Suggested Citation

Jain, Kriti and Bearden, Joseph Neil and Filipowicz, Allan, Depression and Forecast Accuracy: Evidence from the 2010 FIFA World Cup (May 29, 2012). INSEAD Working Paper No. 2012/57/DS/OB. Available at SSRN: https://ssrn.com/abstract=1754928 or http://dx.doi.org/10.2139/ssrn.1754928

Kriti Jain (Contact Author)

Independent

No Address Available
United States

Joseph Neil Bearden

INSEAD - Decision Sciences ( email )

United States

Allan Filipowicz

Independent

No Address Available
United States

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