第5题：“I follow a disciplined approach to investing. 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.”
由于prospect theory是loss一点点需要对应更多的gain，所以这道题declined by 25 percent 对应的是appreciated by 15 percent，并不是prospect theory，而是loss aversion。
第7题：Situation 3 Choosing between losing $12,000 with 100% certainty, or accept
ing a gamble that offers a 50% probability of winning $6,000 and a 50% probability of losing $24,000。
50% probability of winning $6,000 and a 50% probability of losing $24,000，winning的金额比losing的金额小很多，为何还是prospect theory？是否与第5题的知识点有矛盾？
