But more recently, prediction markets have developed an odd sort of problem. There seems to be a feedback mechanism now whereby the betting-market odds reify themselves. . . .

Traders are treating market odds as correct probabilities and not updating enough based on outside information. Belief in the correctness of prediction markets causes them

... See more

n the days leading up to the US election, pollsters had the race deadlocked. The vote was essentially a coin flip.

But over on the betting platform Polymarket, the odds were much more solidly in former President Donald Trump’s favor. On Monday, Trump led Vice President Kamala Harris 58% to 42% — a lead that, by Wednesday morning, proved to be a... See more