RESULTS FROM A SIMPLE PREDICTION CONTEST

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Published: Dec 19, 2012
DOI: https://doi.org/10.5750/jpm.v5i1.483
Keywords:
prediction contest prediction market information aggregation forecasting

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Calvin Blackwell
Department of Economics and Finance College of Charleston

Abstract

In a prediction contest participants compete for a prize by submitting guesses regarding an unknown variable; the winner of the contest is the participant who submits the most accurate guess. In this paper the results of a simple prediction contest are reported. In the contest, certain members of the administration of a medium-sized university were asked to predict the number of freshmen deposits the university would receive by its spring deadline. Contest participants were told that the contest participant who submitted the most accurate guess would receive a $100 prize. With this incentive-compatible mechanism in place, the average guess from the contest was used as a forecast for the number of deposits. This forecast was at least as accurate as any other simple forecast method.

Article Details

Issue
Vol. 5 No. 1 (2011)
Section
Articles

References

Armstrong, J.S. 2001. Combining Forecasts. Principles of Forecasting: A Handbook for Researchers and Practitioners, edited by J.S. Armstrong. Kluwer: New York

Berg, J.E., F.D. Nelson and T.A. Rietz. 2008. Prediction market accuracy in the long run, International Journal of Forecasting 24: 285-300.

Blackwell, C. 2010. A Quasi-Experimental Test of the Marginal Trader Hypothesis. Working paper.

Bruce, R.C. 1935. Group judgments in the fields of lifted weights and visual discrimination. Journal of Psychology 1: 117-121.

Chen, K-Y. and C. Plott. 2002. Information aggregation mechanisms: Concept, design and implementation for a sales forecasting problem. California Institute of Technology Social Science Working Paper No. 1131.

Clemen, R.T. 1989. Combining Forecasts: A review and annotated bibliography. International Journal of Forecasting 5: 559-609.

Fisher, I. and N. Harvey. 1999. Combining forecasts: What information do judges need to outperform the simple average? International Journal of Forecasting 15: 227-246.

Galton, F. 1907. Vox Populi. Nature 75: 450-51.

Gordon, K. 1924. Group judgments in the field of lifted weights. Journal of Experimental Psychology 3: 398-400.

Graefe, A. and J.S. Armstrong. 2011. Comparing face-to-face meetings, nominal groups, Delphi and prediction markets on an estimation task. International Journal of Forecasting 27: 183-195.

Kerr, N.L. and R.S. Tindale. 2011. Group-based forecasting? A social psychological analysis. International Journal of Forecasting 27: 14-40.

Larrick, R.P. and J.B. Soll. 2006. Intuitions About Combining Opinions: Misappreciation of the Averaging Principle. Management Science 52(1): 111-127.

Oliven, K. and T.A. Rietz. 2004. Suckers are Born but Markets are Made: Individual Rationality, Arbitrage, and Market Efficiency on an Electronic Futures Market, Management Science 50(3): 336-351.

Wolfers, J. and E. Zitewitz. 2004. Prediction Markets. Journal of Economic Perspectives, 18(2): 107-126.