Prediction Markets, Decision Markets, and More

Chris F. Masse December 15th, 2006

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Prediction Markets, Decision Markets, and More - (PPT) - by Robin Hanson - 2006-12-13

- All speculation is “gambling”!

- In direct compare, beats alternatives - (Vs. Public Opinion - Vs. Public Experts - Vs. Private Experts)

- Advantages - (Numerically precise - Consistent across many issues - Frequently updated - Hard to manipulate - Need not say who how expert when - At least as accurate as alternatives)

What’s above is about “prediction markets”. Now, below, here are possible instances of “decision markets” (a more complex form of prediction markets, structured to be a decision tool, not jut a forecasting tool):

Decision Market Applications

E[ Revenue | Switch ad agency? ]
E[ Revenue | Raise price 10%? ]
E[ Project done date | Drop feature? ]
E[ Project done date | Add personnel? ]
E[ Stock price | Fire CEO? ]
E[ Stock price | Acquire firm X? ]

2 Responses to “Prediction Markets, Decision Markets, and More”

  1. Robin HansonNo Gravataron 15 Dec 2006 at 1:57 PM

    Chris, I very much hope people with better marketing skills than I will successfully apply decision markets. I am of course interested in hearing about new career options, but won’t quit my “day job” until a solid alternative is available. I’ll always enjoy some philosophy on the side though, no matter what my day job.

  2. Chris MasseNo Gravataron 15 Dec 2006 at 2:39 PM

    I was thinking about being a professor in a West Coast university (hopefully in Northern California), closer to where your audience is.

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