lol fair enough, naive is a strong word but yeah i get your point. i didnt mean nobody tries to manipulate markets — obviously they do. my point was more that the original thesis behind prediction markets assumed this would be a minor problem because the financial incentive to correct misinformation would outweigh the incentive to create it. turns out thats not always true when you can make more money threatening a journalist than trading the actual contract

I think it is much stronger than that: I think the whole reason these exist is to create a way for parties to profit off insider information that side-steps the stock market. Any other effects are a happy coincidence.

thats a pretty cynical take but i can see the argument. the counter tho is that most of the volume on kalshi is sports contracts now where insider info barely applies - like you dont need a mole at the NBA to know lebron is probably scoring over 25 tonight. the geopolitical stuff is where the insider trading concern is legit