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Event Studies in Real- and Play-Money Prediction Markets

Author

Listed:
  • Christian Slamka
  • Arina Soukhoroukova
  • Martin Spann

Abstract

Event study methodology is a powerful procedure to quantify the impact of events and managerial decisions such as new product announcements on the value of a publicly traded company. However, for many events, appropriate financial data may not be available, either because suitable securities are not traded on financial markets or confounding effects limit the insights from financial data. In such instances, prediction markets could potentially provide the necessary data for an event study. Prediction markets are electronic markets where participants can trade stocks whose prices reflect the outcome of future events, e.g. election outcomes, sports results, new product sales or internal project deadlines. One key distinction between different prediction market applications is whether they require real money investments or play-money investment with non-monetary incentives for traders. Thus, the goal of this paper is to compare prediction markets' ability to conduct event studies with respect to these two different incentive schemes. We empirically test the applicability of event study methodology in real-money vs. play-money prediction markets with two data sets. We show that event studies with prediction markets deliver robust and valid results with both incentive schemes.

Suggested Citation

  • Christian Slamka & Arina Soukhoroukova & Martin Spann, 2008. "Event Studies in Real- and Play-Money Prediction Markets," Journal of Prediction Markets, University of Buckingham Press, vol. 2(2), pages 53-70, September.
  • Handle: RePEc:buc:jpredm:v:2:y:2008:i:2:p:53-70
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    Citations

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    Cited by:

    1. Tobias Kranz & Florian Teschner & Christof Weinhardt, 2015. "Beware of Performance Indicators," Business & Information Systems Engineering: The International Journal of WIRTSCHAFTSINFORMATIK, Springer;Gesellschaft für Informatik e.V. (GI), vol. 57(6), pages 349-361, December.
    2. Coulomb, Renaud & Sangnier, Marc, 2014. "The impact of political majorities on firm value: Do electoral promises or friendship connections matter?," Journal of Public Economics, Elsevier, vol. 115(C), pages 158-170.
    3. Renaud Coulomb & Marc Sangnier, 2014. "The Impact of Political Majorities on Firm Value: Do Electoral Promises or Friendship Connections Matter?," PSE Working Papers halshs-00990241, HAL.
    4. Pankaj Pandey & Einar Snekkenes, 2016. "Using Financial Instruments to Transfer the Information Security Risks," Future Internet, MDPI, vol. 8(2), pages 1-62, May.
    5. Coulomb, Renaud & Sangnier, Marc, 2014. "The impact of political majorities on firm value: Do electoral promises or friendship connections matter?," Journal of Public Economics, Elsevier, vol. 115(C), pages 158-170.

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