RT Journal Article SR Electronic T1 Risk, Return, and Hedging of Fixed-Rate Mortgages JF The Journal of Fixed Income FD Institutional Investor Journals SP 85 OP 107 DO 10.3905/jfi.1991.408017 VO 1 IS 2 A1 Douglas T. Breeden YR 1991 UL https://pm-research.com/content/1/2/85.abstract AB