There is typically a lag of about three months between the time the weighted average coupon of an M.B.S. pool has crossed the threshold for refinancing and an acceleration in prepayment speed is observed.
LAG RESPONSE OF PREPAYMENTS
Meaning of LAG RESPONSE OF PREPAYMENTS in English
Campbell R. Harvey. Hypertextual finance English glossary. Английский словарь гипертекстовых финансов. 2012