Other hypothetical prediction markets whose insights would be useful include those used in futarchy, a proposed government system in which decisions are made based on betting markets. The proposal: https://mason.gmu.edu/~rhanson/futarchy.html; some analysis: https://www.lesswrong.com/w/futarchy. In futarchy, prediction markets would be set up for, for example, “average happiness of citizens (as measured by regular survey) will increase in 1 year if Bill ABC passes” and “average happiness of citizens will increase in 1 year if Bill ABC does not pass”. The government would pass or reject proposed bills according to whichever market predicts higher happiness, and the market describing the event that did not happen would be closed and its money refunded.