Mortgage Choice as a Natural Field Experiment on Choice under Risk

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Abstract

Data on approximately 280,000 borrowers from the UK Survey of Mortgage Lenders are used to model choices between variable and fixed rate mortgages. The choice is assumed to depend on three factors: risk attitude, interest-rate expectations, and individual discount rate. The ordered probit model is used for estimation, while taking account of a number of econometric issues including missing counterfactuals, selectivity, and endogeneity. A large number of strong effects are found, including: higher income borrowers are less risk averse and have a lower discount rate, and risk aversion rises with the amount borrowed, providing evidence of increasing relative risk aversion.
Original languageEnglish
Pages (from-to)1401-1426
Number of pages26
JournalJournal of Money, Credit and Banking
Volume44
Issue number7
DOIs
Publication statusPublished - 1 Oct 2012

Keywords

  • G20
  • M13
  • risky choice
  • fixed and variable rate
  • counterfactuals
  • interest rate expectations
  • discounting
  • Ordered probit
  • term structure

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