背景:Reading 13在提到barbell position时有一句描述:implement a barbell position with both short and long maturities, resuling in greater cash flow dispersion. This strategy is particularly suitable for yield curve slope changes or twist.
问题: greater cash flow dispersion-->higher convexity--> more structural risk。而背景中描述的yield curve slope changes or twist.正是structural risk,也即上文的逻辑是barbell position is suitable for non-parallel shift.这逻辑不是正好相反吗?