麻烦用这个Vshort=FP/(1+rf)T-t -St解释一下B和c选项，forward contract的market price降低不就是vshort降低了吗？rf增加分母增大整体不也减少了吗。。那个主管说的experience loss是在说Vshort这公式数值减小就是在experience loss吗？
问题如下图：
选项：
A. 
B. 
C. 
解释：
包包_品职助教 · 2019年03月30日
同学你好，B选项，根据Vshort=FP/(1+rf)T-t -St，rf增加, 分母增大, 整体减少了。在合约签订的时候，双方不赚不亏，Vshort=FP/(1+rf)T -S0=0，其他条件不变的话，rf增加, 分母增大, 整体减少，Vshort就＜0了，就会产生亏损。
C选项说forward contract的market price降低，首先你要知道这个forward contract的market price指的是当前时刻在市场上签订一份远期合约约定卖TSI的价格，我们称为FPt，不是上个公式里的FP（指的是0时刻我们已经签订的那份远期合约里面约定的卖TSI的价格，我们称为FP0），FPt减少，说明当前市场上签订一份t时刻卖TSI股票，约定的卖价减少了。这就说明我们0时刻签的合约对我们来说是有利的，所以就有一个gain。
NO.PZ201702190300000106 老师好 short equity forwar250.562289 不是指我希望以后pri低于 250.562289 的时候 我就可以以 250.562289 的价格sell 掉TSI shares 吗？也就是说我是希望以后TSI 's share pri越低越好。 A 和B 不都是表示TSI share pri会op 嘛， 那不都是对我来说是gain 吗？ 谢谢。
NO.PZ201702190300000106 increase in the risk-free rate, all else equa crease in the market priof the forwarcontract, all else equal. B is correct. From the perspective of the long position, the forwarvalue is equto the present value of the fferenin forwarprices: Vt(T)= PVt,T[Ft(T)-F0(T)] where Ft(T) =FVt,T(St+θt-γt) All else equal, increase in the risk-free rate before contraexpiration woulcause the forwarprice, Ft(T), to increase. This increase in the forwarpriwoulcause the value of the TSI forwarcontract, from the perspective of the short, to crease. Therefore, increase in the risk-free rate woulleto a loss on the short position in the TSI forwarcontract.这道题答案为什么不选A，请用公式一下。
老师我不懂这句话All else equal, increase in the risk-free rate before contraexpiration woulcause the forwarprice, Ft(T), to increase.利率上升怎么会使得forwarprice也上升呢？
不选 C，是因为 Forwarpri已经锁定为 250.562289 了吗？这样不管 forwarpri如何降价，都和我是否亏损无关了
increase in the risk-free rate, all else equa crease in the market priof the forwarcontract, all else equal. B is correct. From the perspective of the long position, the forwarvalue is equto the present value of the fferenin forwarprices: Vt(T)= PVt,T[Ft(T)-F0(T)] where Ft(T) =FVt,T(St+θt-γt) All else equal, increase in the risk-free rate before contraexpiration woulcause the forwarprice, Ft(T), to increase. This increase in the forwarpriwoulcause the value of the TSI forwarcontract, from the perspective of the short, to crease. Therefore, increase in the risk-free rate woulleto a loss on the short position in the TSI forwarcontract.重新定价法中 long/short position 公式分子中 FPt与 FP0 谁减谁的顺序从逻辑上怎么理解？