Do Betfair markets reflect true opinion?

OK, for years the exchange mechanism has provided a very useful pricing mechanism. A careful aggregation of demand between people competing on a level playing field and it has provided a beautiful insight into the way free markets can work to mysteriously, accurately, price an event –  in this case the prediction that something will win a sports event.

Changes

But we have been watching closely as the market has gradually decoupled from it’s long established core. What do we mean …