17. In the early 1980 , at a time when intertest rates were at historical lighs, investiment banking firms introdacted a security tucked by U. 5 . govemmeat boeds that paid no annal interes (ceferred to as zero-coupoo bonds), with all of the inferest to be paid at the bonds" maturify date. The wecuities were given naracs secth an THGR.5 (Troavury Inceaic Gitnwth Receipts, a Metril I ynch product), CATS (Ccrtiticates of Accrual on Treasuries, a Salomon Bethers product), and 1.10NS (Lehmat Imestment Opporteaity Notes, a Lehman Brothers peoduct). a. Why do you think mecuritics with this feature were introdocod at that lime? b. Too cited it was staicd that theie securities had noy rivk. What rivk does an imertoe face when purchasing soch sccaritics? 17. In the early 1980 , at a time when intertest rates were at historical lighs, investiment banking firms introdacted a security tucked by U. 5 . govemmeat boeds that paid no annal interes (ceferred to as zero-coupoo bonds), with all of the inferest to be paid at the bonds" maturify date. The wecuities were given naracs secth an THGR.5 (Troavury Inceaic Gitnwth Receipts, a Metril I ynch product), CATS (Ccrtiticates of Accrual on Treasuries, a Salomon Bethers product), and 1.10NS (Lehmat Imestment Opporteaity Notes, a Lehman Brothers peoduct). a. Why do you think mecuritics with this feature were introdocod at that lime? b. Too cited it was staicd that theie securities had noy rivk. What rivk does an imertoe face when purchasing soch sccaritics