Prediction markets with continuous payout curves that resolve along a spectrum instead of a binary yes/no, allowing traders to express shaped beliefs about where an outcome will land.
Cluster: Mechanism Design
Prediction markets with continuous payout curves that resolve along a spectrum instead of a binary yes/no, allowing traders to express shaped beliefs about where an outcome will land.
Referenced in 3 articles
Binary prediction markets struggle with continuous outcomes like oil prices because capital fragments across individual strike prices. This piece uses Polymarket's crude oil dataset to illustrate the staircase hedging problem. It then shows how continuous probability markets solve this with a single density-based pricing mechanism.
MO compares three market architectures for expressing shaped beliefs: binary prediction markets, options structures, and continuous prediction markets. The article traces the distribution gap from the Black-Scholes era through modern crypto markets and argues that continuous payout curves replace the workarounds traders currently use.
A landmark experimental study comparing the accuracy of real-money (TradeSports) versus play-money (NewsFutures) prediction markets during the 2003-2004 NFL season. Both market types showed significant predictive power and remarkably similar accuracy — the play-money markets performed as well as the real-money markets. The authors hypothesize that this reflects two countervailing forces: real-money markets better motivate information discovery, while play-money markets may yield more efficient information aggregation by attracting a larger and more diverse pool of traders unconstrained by gambling regulations.