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Autor:innen: 
Erscheinungsjahr: 
2023
Schriftenreihe/Nr.: 
UCD Centre for Economic Research Working Paper Series No. WP23/06
Verlag: 
University College Dublin, UCD School of Economics, Dublin
Zusammenfassung: 
The CFTC has recently licensed a commercial prediction market to operate in the US. Previous theoretical work has not incorporated that prediction markets charge fees. We examine the impact of fees by introducing them to a model in which the market price equals the true probability when there are no fees. Fees charged on winnings mean this property no longer generally holds but trading fees that charge equal amounts on both sides of contracts preserve this feature. Prediction markets with fees feature a form of favorite-longshot bias: Post-fee loss rates depend negatively on the probability of the event being backed.
Schlagwörter: 
Prediction Markets
Commission Fees
Favorite-Longshot Bias
JEL: 
G14
G23
Dokumentart: 
Working Paper

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