basis risk是指什么？

何老师在下面的视频对basis rIsk做了详细的讲解，建议你去听听课：

此外，原版书对basis risk 的解释我觉得写的挺好的：The risk resulting from using a hedging instrument that is imperfectly matched to the investment being hedged; in general, the risk that the basis wil change in an unpredicated way.