一类不对称信息结构下的资本资产定价模型

Model of Capital Asset Pricing with Asymmetric Information Structure

研究了一类信息不对称结构下的资本资产定价模型及投资策略问题,并假设金融市场只存在3类投资者:知情交易者、反应不足交易者和反应过度交易者,对每类投资者运用贝叶斯法则修正先验概率。文中得到风险资产的短期均衡价格,同时提出了合理的投资策略。

A capital asset pricing model and the corresponding investment strategy are investigated for the financial market with asymmetric information structure. Suppose that investors can be defined with three kinds: informed trader, under-reaction trader and over-reaction trader; all traders use Bayesian principle to modify their prior distributions. The anthors obtain the equilibrium price of the risky asset in the short run and the rational investment strategy.