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2020-02-11 06:55請問，reading 7原版書課后第五題，為啥不選prospect theory呢？
所屬：CFA Level III > Behavioral Finance 視頻位置 相關試題
來源： 視頻位置 相關試題
1個回答
Peter F助教
2020-02-11 18:44
該回答已被題主采納
同學，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.
題干的點是，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. 即漲了多少就賣，跌了多少就買，即 portfolios are constructed in layers to satisfy investor goals，這是 behavioral portfolio theory。
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