We present a simple, linear asset pricing model of the cross section of Mortgage-Backed Security (MBS) returns in which MBS earn risk premia as compensation for their exposure to prepayment risk. We measure prepayment risk and estimate security risk loadings using real data on prepayment...

We present a simple, linear asset pricing model of the cross section of Mortgage-Backed Security (MBS) returns in which MBS earn risk premia as compensation for their exposure to prepayment risk. We measure prepayment risk and estimate security risk loadings using real data on prepayment...

Despite theoretical and intuitive reasons for a credit risk premium, past research has found little supporting empirical evidence. This is primarily due to biases in computing credit excess returns which improperly account for term risk. Using data spanning 80 years in the U.S., and nearly 20...