请问各位坛友，这句话中“Perhaps when investors report high expectations of market returns, they mean high expected growth of fundamentals, in which case their true expectations of market returns are low. ”为什么投资者对基本面期望增长率较高时，对股票市场期望收益率低呢？是因为对基本面的期望已经反映在价格中了吗？