[CFA入门] 请教关于risk free rate return

FVPV

请教大家，以下两个利率，应该选取哪个作为risk free rate呢？为什么？

Rate of return on 3-month Treasury bills    3.0%
Rate of return on 10-year Treasury bonds   3.5%

Iginla2011

Risk free rate 是zero coupon的

bpdulog

The 90-day Treasury bill rate is used because there is no credit risk, and the maturity is so short that there is no liquidity or market risk. The 10-year Treasury also has no credit risk, but if interest rates rise, the market value could decline.

DoubleDip

我也觉得是3月的呀！是不是还有别的条件呀？

lucasg85

risk free rate指的是**发的国债。如果没有其他条件，这2个都是risk free rate，并且他们都是年率。

OmarAdnan

答案是第二个。。。但我觉得应该是短期国债利率啊。。。哪位大侠能帮忙解释一下？