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Optimal Mortgage Refinancing: A Closed Form Solution

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  • Sumit Agarwal
  • John C. Driscoll
  • David Laibson

Abstract

We derive the first closed-form optimal mortgage refinancing rule. The expression is derived by using the Lambert-W function to solve a tractable class of mortgage refinancing problems. We calibrate our solution and show that our quantitative results closely match those reported by researchers who use numerical methods.

Suggested Citation

  • Sumit Agarwal & John C. Driscoll & David Laibson, 2007. "Optimal Mortgage Refinancing: A Closed Form Solution," NBER Working Papers 13487, National Bureau of Economic Research, Inc.
  • Handle: RePEc:nbr:nberwo:13487
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    More about this item

    JEL classification:

    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages

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