Self-Financed Wagering Mechanisms for Forecasting
- Nicolas Lambert ,
- John Langford ,
- Jennifer Wortman Vaughan ,
- Yiling Chen ,
- Daniel Reeves ,
- Yoav Shoham ,
- David Pennock
Ninth ACM Conference on Electronic Commerce (EC) |
We examine a class of wagering mechanisms designed to elicit truthful predictions from a group of people without requiring any outside subsidy. We propose a number of desirable properties for wagering mechanisms, identifying one mechanism—weighted-score wagering—that satisfies all of the properties. Moreover, we show that a single-parameter generalization of weighted-score wagering is the only mechanism that satisfies these properties. We explore some variants of the core mechanism based on practical considerations.