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Elective Mortgage Prepayment: Termination and Curtailment
Author(s) -
Chinloy Peter
Publication year - 1993
Publication title -
real estate economics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.064
H-Index - 61
eISSN - 1540-6229
pISSN - 1080-8620
DOI - 10.1111/1540-6229.00613
Subject(s) - prepayment of loan , mortgage underwriting , mortgage insurance , payment , collateralized mortgage obligation , commercial mortgage backed security , shared appreciation mortgage , loan , derivative (finance) , secondary mortgage market , business , finance , embedded option , actuarial science , economics , monetary economics , interest rate , insurance policy , casualty insurance
Mortgage‐prepayment risk underlies the structuring of mortgage‐backed derivative securities, such as tranched real estate mortgage investment conduits. This prepayment comes either from mortgage termination or from curtailment, where the borrower retains the existing mortgage and prepays a portion. There are differences in cash flows from the two types of prepayment. In termination, the loan disappears from a pool, and the scheduled payment to investors in the pool is reduced. In curtailment, the loan survives, and the scheduled payment is unchanged but the term is reduced. There are implications for structuring mortgages and derivative securities. The prepayment decision is embedded in an in‐tertemporal household utility maximization framework where choices are made between refinancing, making the regular payment, default or curtailment. Empirical results are presented for Government National Mortgage Association (GNMA) pools, and an algorithm is presented that separates the termination and curtailment components, facilitating the development of derivative securities.