衍生品module 3课后题第34题,答案的结论提到策略:Trade the forward rate bias. Buy (invest in) the forward discount currency and sell (borrow) the forward premium currency,逻辑是什么,没听懂。为什么不用区分是contango还是backwardation情况下呢?
另外相似的另外一道题有一个答案描述为:basis为negative就要sell basis即 sell bond现货,buy future。逻辑是什么,这些概念有点混淆的云里雾里了求解释?basis等于期货价格减去现货价格对吧,那是basis为负的情况下期货小于现货,未来期货收敛到现货价格意味着期货价格会涨所以要long?