请教老师一个问题
为什么说if the benchmark is treasuries or a bond sector, any corporate bond with an OAS less than or equal to zero is overvaled relative to benchmark, because it must have more credit risk, and mast likely more liquidity risk, than the benchmark. If OAS is positive, the bond is undervalued relative to the benchmark only if the OAS is greater than the required OAS.
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谢谢