Michael Giberson Financial Time‘s columnist Tim Harford discusses allegations that there are efforts to manipulate prices of Hillary Clinton-related shares on prediction markets. Hartford writes: Justin Wolfers and Eric Zitzewitz have pointed out that Hillary Clinton’s chances of becoming president, as predicted by one betting market, InTrade, started to climb dramatically mid-May, topping 40 per … More Tim Harford on Manipulation of Prediction Markets … More Tim Harford on Manipulation of Prediction Markets