The potential benefits of allocating a portion of a portfolio to alternative investments include: A. ease of manager selection. B. improvement in portfolio risk-return. C. accessible and reliable measures of risk and return. 请老师帮忙解析，感谢～

An investor is most likely to consider adding alternative investments to a traditional investment portfolio because: A. of their historically higher returns. B. of their historically lower standard deviation of returns. C. their inclusion is expected to reduce the portfolio's Sharp ratio. 请老师帮忙解析本题，感谢～

老师您好， 题目：Combining a protective put with a forward contract generates equivalent outcomes at expiration to those of a: A. fiduciary call B. long call combined with a short asset. C. forward contract combined with a risk-free bond. 请老师帮忙解析本题，感谢～

请问17、18题的运算过程？

价格上升 大家不愿意消费 导致C下降 Y减少。。 但是价格上升 购买力下降 员工真实工资下降 厂商更多生产 Y上升 感觉有点矛盾啊这里

工资粘性这一块 物价上升 真实工资下降 厂商更愿意生产. 这里的厂商是指员工所在的厂商是吗？还是价格上升的那些物品的厂商？

ADcurve 放映的是price 和y的关系 y是GDP的意思,为什么ad curve的横坐标写的是real income?

正确答案里为什么没有pmt呢？，不是有四个项才能算出fv吗

DC和social security有什么区别？

为什么利率上升 投资下降了？ 这里的利率是指哪方面的利率？