1000001205792020-02-11 06:55:56
请问,reading 7原版书课后第五题,为啥不选prospect theory呢?
回答(1)
Peter F2020-02-11 18:44:25
同学,你好:Prospect theory 是指 An alternative to expected utility theory, it assigns value to gains and losses (changes in wealth) rather than to final wealth, and probabilities are replaced by decision weights. In prospect theory, the shape of a decision maker’s value function is assumed to differ between the domain of gains and the domain of losses.
题干的点是,When a stock has appreciated by 15 percent, I sell it. Also, I sell a stock when its price has declined by 25 percent from my initial purchase price. 即涨了多少就卖,跌了多少就买,即 portfolios are constructed in layers to satisfy investor goals,这是 behavioral portfolio theory。
- 评论(0)
- 追问(0)


评论
0/1000
追答
0/1000
+上传图片