RT Journal Article SR Electronic T1 Why do GNMAs yield more than Treasuries? JF The Journal of Portfolio Management FD Institutional Investor Journals SP 72 OP 74 DO 10.3905/jpm.1982.408851 VO 8 IS 3 A1 Terrence M. Clauretie YR 1982 UL https://pm-research.com/content/8/3/72.abstract AB