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The Cross Section of MBS Returns
Author(s) -
DIEP PETER,
EISFELDT ANDREA L.,
RICHARDSON SCOTT
Publication year - 2021
Publication title -
the journal of finance
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 18.151
H-Index - 299
eISSN - 1540-6261
pISSN - 0022-1082
DOI - 10.1111/jofi.13055
Subject(s) - prepayment of loan , coupon , asset (computer security) , sign (mathematics) , econometrics , risk premium , actuarial science , business , economics , finance , mathematics , computer science , mathematical analysis , computer security
We present a simple, linear asset pricing model of the cross section of Mortgage‐Backed Security (MBS) returns. MBS earn risk premia as compensation for their exposure to prepayment risk. We measure prepayment risk and estimate risk loadings using prepayment forecasts versus realizations. Estimated loadings on prepayment risk decrease monotonically in securities' coupons relative to the par coupon, consistent with the predicted effect of prepayment on bond value. Prepayment risk appears to be priced by specialized MBS investors. The price of prepayment risk changes sign over time with the sign of a representative MBS investor's exposure to prepayment shocks.