你是说buy&hold中有两个策略:1、when yield curvre is upward sloping,purchase bonds with higher durations than the benchmark.
2、if the yield curve remianting satble,the manager obtains a higher return by increase the duration(maturity)
这两句话没有很懂,图形到底长什么样子呢?可以详细介四下吗?老师基础班讲的不是很详细。