RT Journal Article SR Electronic T1 Expected Mobility JF The Journal of Fixed Income FD Institutional Investor Journals SP 68 OP 78 DO 10.3905/jfi.2000.319238 VO 10 IS 1 A1 John M. Clapp A1 John P. Harding A1 Michael Lacour-Little YR 2000 UL https://pm-research.com/content/10/1/68.abstract AB This research combines information on mortgage terminations with housing market data to distinguish borrowers who prepay their mortgages because they are moving from those who prepay to refinance without moving. It uses a closed-form valuation formula to compute the callable value of the mortgage and property level data to estimate current loan-to-value ratios. Results show that expected mobility affects borrower behavior in an asymmetric fashion. Borrowers with high expected mobility are less likely to refinance, but borrowers with strong refinancing incentives are not more likely to move. Differentiating movers from refinancers provides a clearer picture of the responsiveness of prepayments to interest rate movements.