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Saul Munn's avatar

"This shows the chance of winning the general election IF NOMINATED:

[chart showing that P(Newsom wins general election | Newsom wins Dem nomination) is 72%, while P(Biden wins general election | Biden wins Dem nomination) is 42%]

As you can see, bettors say that Democrats should absolutely switch horses, even at this late stage."

Not exactly. These are bets on correlation, not causation — e.g. bettors might be imagining some event E that (a) is outside of anyone in the Dem party's control, (b) makes Newsom much more likely to win the Dem nomination, and (c) makes Newsom much more likely to win the general election.

DYNOMIGHT has a really good essay on this: https://dynomight.net/prediction-market-causation/

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