问题如下图：
选项：
A. 
B. 
C. 
解释：
loss的时候loss aversion会造成交易量下降。B选项不对么？
企鹅_品职助教 · 2019年10月15日
"loss的时候loss aversion会造成交易量下降" 这句话是正确的。但是文中说的是 “past 12 months” 表现不好，也就是last year, 不是this year.
所以如果B 选项说的是reducing the portfolio turnover during the past year, 那就是正确的。
维京Viking · 2019年12月25日
past 12 month表现不好，因为loss aversion 所以今年turnover下降，也说得过去啊，这题出的太烂了
粉红豹 · 2020年01月03日
如果人站在年底，说“during the past twelve months” 不就等于“during this year”吗？那么B选项就争取了呀
NO.PZ201511190100000304 降低换手也是不愿卖出的表现啊？
NO.PZ201511190100000304 Recing the portfolio turnover this year. cing to holthe losing positions until they turn aroun C is correct. Jorn’s behavior is a classic example of loss aversion: When a loss occurs, she hol on to these positions longer thwarrante ing so, Jorn hacceptemore risk in the portfolio. Loss-aversion biis one in whipeople exhibit a strong preferento avoilosses versus achieving gains. One of the consequences of loss aversion biis ththe financimanagement profession(in this case, Jorn) mhollosing investments in the hope ththey will return to break-even or better.总结两个要点，请老师确认是否OK1 越跌越持有，体现厌恶，换手率降低，也可能体现这一点2 如果出现上涨，下跌收益对比，如果对称就是mean-variance。如果不对称，需要上涨止盈收益率大过下跌止损收益率，才是损失厌恶。
Recing the portfolio turnover this year. cing to holthe losing positions until they turn aroun C is correct. Jorn’s behavior is a classic example of loss aversion: When a loss occurs, she hol on to these positions longer thwarrante ing so, Jorn hacceptemore risk in the portfolio. Loss-aversion biis one in whipeople exhibit a strong preferento avoilosses versus achieving gains. One of the consequences of loss aversion biis ththe financimanagement profession(in this case, Jorn) mhollosing investments in the hope ththey will return to break-even or better.A为啥不对呢 就是认为没事 不需要担心
对于B，助教老师说“改为ring past year”就对了，想请问，这道题目是这样的幼稚题点吗？不对吧？ 如果我站在一年的年底，那么按照case文中第一段的“ring the past 12 months”，不就是“ring this year”，不就是B的描述吗？那么B就是正确的了啊？？？？？