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October 2026 study finds no systematic political bias in election prediction market prices

  • October 2026 study finds no systematic political bias in election prediction market prices — An October 2026 working paper by Eric Zitzewitz analyzed election prediction markets from 1880 to 2025 across venues including PredictIt, Betfair and Kalshi. It found no statistically significant partisan bias in prices at one day, three weeks or four months before elections. (RotoWire)

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