这样的准确模型是不存在的。 This simple example illustrate why our attempt to find recurrent patterns in stock price movements was doomed to failure a forecast about favorable future performance leads instead to favorable current performance as market participants all try to get in on the action before the price jump这样的准确模型是不存在的。 – This simple example illustrate why our attempt to find recurrent patterns in stock price movements was doomed to failure. – A forecast about favorable future performance leads instead to favorable current performance, as market participants all try to get in on the action before the price jump