Equity risk premim: which risk free rate to use?


Do you know in which cases I should use Short term and Long term risk free rates on calculating equity risk premium?

Fama-french uses Short term and all others Long term?


I haven’t reviewed that chapter in a few weeks, but from what I remember you want to use the rate that corresponds to the time horizon of the investment.

T-bill - short term

T-bond - long term

Might also want to keep in mind that if the yield curve is upward sloping using a T-bond rate (instead of a T-bill rate) will cause the estimated equity risk premium to be lower.