#市场效率

Peter Schmidt-Nielsen

7个月前

It's a common misconception that an efficient market must be a random walk — the actual condition is that it's driven to be a martingale, where the EV in the future is equal to the current value. This market is a classic example of such non-random walk martingale behavior.

#金融市场 #随机游走 #鞅理论 #市场效率