On the other hand--and this is something that I want to emphasize-- you don't want to carry that too far and one of the lessons of behavioral finance is that markets are not really efficient in a global sense.
而另一方面,我想强调的是...,不要认为这就是真理,行为经济学中的一课就说,从全球的角度看,市场并非全然是有效的
金融市场课程节选 : 耶鲁公开课