在行为金融的假设框架下,基于投资者的非理性认知分布和不确定风险厌恶特征,提出了刻画证券投资收益的非理性认知期望收益和非线性认知期望收益模型,研究了投资者的非理性特征对认知期望收益的影响。结果为,在现实的证券市场中,由于投资者的非理性认知和投资者对不确定投资的风险厌恶,投资者对证券投资收益的测算,不是传统金融理论所刻画的理性期望收益(基于历史数据决定或由经典的资本资产定价模型所决定),而是由投资者的一些非理性特征来决定。
Under the framework of behavioral finance, prose the irrational perceived expected return and the nonlinear perceived expected return model was prosed based on the irrational perceived distribution and the uncertainty risk aversion characters for investors and was studied. The effect of the investors irrational characters on the perceived expected return.