Comparing trading behaviour and profit composition in prediction markets
Keywords:prediction markets, group forecasting, information markets, trader classification, trading incentives
AbstractPrediction markets have established itself as forecasting technique, especially within the IT industry. While the majority of existing studies focuses either on the output of such markets or its design settings, the traders who actually produce the forecasts got only little attention yet. Within this work, we develop a classification scheme for traders of a prediction market that is grounded on both, financial and prediction market literature. Over a period of three years, 127 prediction markets have been observed and its 4.329 traders are separated into seven subgroups (beginners, noise traders, average traders, experts, donkey traders, market makers and superior traders), based on their knowledge, experience and selectivity. We find empirical evidence for the existence of these subgroups and thus for the heterogeneity among the traders. For each of these subgroups, we analyze the trading behaviour and the profit composition.
BM Barber and T Odean ‘Boys Will Be Boys: Gender, Overconfidence, And Common Stock Investment’ (2001) The Quarterly Journal of Economics 116(1): 261-292.
JE Berg, R Forsythe, FD Nelson and Rietz ‘Results from a dozen years of election futures markets research’ (2001) Working paper
JE Berg, FD Nelson and TA Rietz ‘Prediction Market Accuracy in the Long Run’ (2008) International Journal of Forecasting 24: 283-298.
JE Berg, GR Neumann and TA Rietz ‘Searching for Google’s Value: Using Prediction Markets to Forecast Market Capitalization Prior to an Initial Public Offering’ (2009) Management Science 55(3): 348-361.
NT Chan, E Dahan, A Kim, AW Lo and T Poggio ‘Securities Trading of Concepts (STOC)’ (2007) Working Paper: Massachusetts Institute of Technology, Cambridge, MA.
K-Y Chen and CR Plott ‘Information Aggregation Mechanisms: Concept, Design and Implementation for a Sales Forecasting Problem’ (2002) Social Science, Working Paper 1131.
JD Christiansen ‘Prediction Markets: Practical Experiments in Small Markets and Behaviours Observed’ (2007) Journal of Prediction markets 1: 17-41.
B Cowgill, J Wolfers and E Zitzewitz ‘Using Prediction Markets to Track Information Flows: Evidence from Google’ (2009) Working Paper.
EF Fama ‘Efficient Capital Markets: A review of Theory and Empirical Work’ (1969) The Journal of Finance 25: 383-417.
S Figlewski ‘Market "Efficiency" in a Market with Heterogeneous Information’ (1978) The Journal of Political Economy 86(4): 581-597.
B Fischhoff, P Slovic and S Lichtenstein . ‘Knowing with certainty: the appropriateness of extreme confidence’ (1977) Journal of Experimental Psychology: Human Perception and Performance 3(4): 552–564.
R Forsythe, F Nelson F, GR Neumann and J Wright ‘Anatomy of an experimental political stock market’ (1992) The American Economic Review 82: 1142–1161.
R Forsythe, TA Rietz and TW Ross ‘Wishes, expectations and actions: a survey on price formation in election stock markets’ (1999) Journal of Economic Behavior & Organization 39(1): 83-110.
SJ Grossman ‘On the efficiency of competitive stock markets where traders have diverse information’ (1976) Journal of Finance 31: 573–585.
TS Gruca, JE Berg and M Cipriano ‘Incentive and Accuracy Issues in Movie Prediction Markets’ (2008) The Journal of Prediction Markets 2: 29-44.
R Hanson and R Oprea ‘Manipulators Increase Information Market Accuracy’ (2004) Working Paper
L Harris ‘Trading and exchanges: market microstructure for practitioners’ (2003) Oxford University Press: Oxford, New York.
FA Hayek ‘The Use of Knowledge in Society’ (1945) The American Economic Review 35(4): 519-530.
Ev Hippel ‘Lead Users: A Source of Novel Product Concepts’ (1986) Management Science 32(7): 791-805.
G Kamp and PA Koen ‘Improving the Idea Screaning Process within Organizations Using Prediction Markets’ (2009) The Journal of Prediction Markets 3(2): 39-64.
AS Kyle ‘Continuous Auctions and Insider Trading’ (1985) Econometrica 53: 1315-1335.
AS Kyle ‘Informed Speculation with Imperfect Competition’ (1989) Review of Economic Studies 56(3): 317-356.
S Luckner and C Weinhardt ‘How to Pay Traders in Information Markets? Results from a Field Experiment’ (2007) Journal of Prediction Markets 1: 1-10.
M Natter, A Mild, U Wagner and A Taudes ‘Practice Prize Report: Planning New Tariffs at tele.ring: The Application and Impact of an Integrated Segmentation, Targeting and Positioning Tool’ (2008) Marketing Science 27(4): 585-600.
K Oliven and TA Rietz ‘Suckers Are Born but Markets Are Made: Individual Rationality, Arbitrage, and Market Efficiency on an Electronic Futures Market’ (2004) Management Science 50(3): 336-351.
G Ortner ‘Aktienmärkte als Industrielles Vorhersagemodell‘ (2000) Zeitschrift für Betriebswirtschaft Ergänzungsheft 70: 115-125.
CR Plott and S Sunder ‘Efficiency of Experimental Security Markets with Insider Information: An Application of Rational-Expectations Models’ (1982) Journal of Political Economy 90(4): 663-698.
ES Rosenbloom and W Notz ‘Statistical Tests of Real-Money versus Play-Money Prediction Markets’ (2006) Electronic Markets 16(1): 63-69.
E Servan-Schreiber, J Wolfers, DM Pennock and B Galebach ‘Prediction Markets: Does Money Matter?’ (2004) Electronic Markets 14(3): 1-11.
C Slamka, A Soukhoroukova and M Spann ‘Event Studies in Realand Play-Money Prediction Markets’ (2008) The Journal of Prediction Markets 2: 53-70.
M Spiegel and A Subrahmanyam ‘Informed speculation and hedging in a noncompetitive securities market’ (1992) The Review of Financial Studies 5(2): 307-329.
M Spann and B Skiera ‘Internet-Based Virtual Stock Markets’ (2003) Management Science 49; 1310-1326.
M Spann, H Ernst, B Skiera and JH Soll ‘Identification of Lead Users for Consumer Products via Virtual Stock Markets’ (2009) Journal of Product Innovation Management 26(3): 322-335.
M Waitz and A Mild ‘Improving Forecasting Accuracy in Corporate Prediction Markets – A Case Study in the Austrian Mobile Communication Industry’ (2009) The Journal of Prediction Markets 3(3): 49-62.
S-W Wu, JEV Johnson and M-C Sung ‘Overconfidence in Judgements: The Evidence, the Implications and the Limitations’ (2008) The Journal of Prediction Markets 2(1): 73–90.
J Wolfers and E Zitzewitz ‘Prediction Markets’ (2004) Journal of Economic Perspectives 18: 107-126.