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Error Trade-offs in Regression Appraisal Methods

  • Max Kummerow
  • Hanga Galfalvy
Part of the Research Issues in Real Estate book series (RIRE, volume 8)

Abstract

This chapter presents a conceptualization of the problem of how many sales to use in a sales comparison method appraisal. We propose that the answer to this question depends on a tradeoff between different kinds of errors and is data dependent, varying across data sets. In hedonic regression appraisals, the law of large numbers does not necessarily hold. Increasing variance, omitted variables, and measurement errors in the sample may overwhelm the efficiency benefits of larger sample size. Heterogeneity within samples makes for the common problem of large standard errors in regression appraisal price predictions (Lenz & Wang, 1998) and suggests disaggregating data to improve the precision of price estimates. A “law of medium numbers” applies, meaning that heterogeneous data may yield smallest standard errors when subsets of data are used for estimates rather than the whole population of sales.

Keywords

Real Estate House Price Sale Price Price Estimate Adjustment Error 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Bogart, W. T. and Cromwell, B. A. How Much is a School Worth?, Journal of Urban Economics, 2000, 47, 280–305.CrossRefGoogle Scholar
  2. Bruce, R. W. and Sundell, D. J. Multiple Regression Analysis: History and Applications in the Appraisal Profession, Real Estate Appraiser, 1977 Jan/Feb, 37–44.Google Scholar
  3. Charemza, W. W. and Deadman, D. F. New Directions in Econometric Practice, London: Edward Elgar Publishers, 1992.Google Scholar
  4. Cho Man. House Price Dynamics: A survey of Theoretical and Empirical Issues, Journal of Housing Research, 1996, 7:2, 145–172.Google Scholar
  5. Colwell, P. F., Cannaday, R. E., and Wu, C. The Analytical Foundations of Adjustment Grid Methods, Journal of the American Real Estate and Urban Economics Association, 1983, 11:1, 11–29.CrossRefGoogle Scholar
  6. Des Rosiers, F. and Theriault, M. Rental Amenities and the Stability of Hedonic Prices: A Comparative Analysis of Five Market Segments, The Journal of Real Estate Research. 1996, 12:1, 17–36.Google Scholar
  7. Dilmore, G. Appraising with Regression Analysis, A Pop Quiz, Appraisal Journal, October 1997, 403–404.Google Scholar
  8. Dubin, R., Pace, R. K., and Thibodeau, T G. Spatial Auto regression Techniques for Real Estate Data, Journal of Real Estate Literature, 1999, 7, 79–95.CrossRefGoogle Scholar
  9. Ekeland, I. Mathematics of the Unexpected, Chicago: University of Chicago Press, 1988.Google Scholar
  10. Epley, D. R. A Note on the Optimal Selection and Weighting of Comparable Properties, Journal of Real Estate Research. 1997, 14:2, 175–181.Google Scholar
  11. Fletcher, M., Gallimore, P., and Mangan J. Heteroscedasticity in Hedonic House Price Models, Journal of Property Research, 2000, 17:2, 93–108.Google Scholar
  12. Gau, G. W., Lai, T.Y., and Wang, K. Optimal Comparable Selection and Weighting in Real Property Valuation: An Extension, Journal of the American Real Estate and Urban Economics Association, 1992, 20:1, 107–123.CrossRefGoogle Scholar
  13. Gau, G. W., Lai, T.Y., and Wang, K. A Further Discussion of Optimal Comparable Selection and Weighting, and a Response to Green, Journal of the American Real Estate and Urban Economics Association, 1994, 22:4, 655–663.CrossRefGoogle Scholar
  14. Gordon, S. History and Philosophy of the Social Sciences, London: Routledge, 1991.CrossRefGoogle Scholar
  15. Green, R. K. Optimal Comparable Weighting and Selection: A Comment, Journal of the American Real Estate and Urban Economics Association, 1994, 22:4, 647–654.CrossRefGoogle Scholar
  16. Hendry, D. Econometrics: Alchemy or Science?, Oxford Blackwell, 1993.Google Scholar
  17. Isakson, H. R. The Nearest Neighbors Appraisal Technique: An Alternative to the Adjustment Grid Methods, Journal of the American Real Estate and Urban Economics Association, 1986, 14:2, 274–286.CrossRefGoogle Scholar
  18. Isakson, H. R. The Nearest Neighbors Appraisal Technique Revisited. Presented at the American Real Estate Society Conference, April 2001.Google Scholar
  19. Jackson, T. O. The Effects of Environmental Contamination on Real Estate: A Literature Review, Journal of Real Estate Literature, 2001, 9:2, 91–116.Google Scholar
  20. Kang, H. B. and Reichert, A. K. An Empirical Analysis of Hedonic Regression and Grid-Adjustment Techniques in Real Estate Appraisal, Journal of the American Real Estate and Urban Economics Association, 1991, 19:1, 70–91.CrossRefGoogle Scholar
  21. Kennedy, P. A Guide to Econometrics, 3rd Ed., Cambridge: MIT Press, 1993.Google Scholar
  22. Leamer, E. E. Let’s Take the Con Out of Econometrics, American Economic Review, 1983, 7:1, 31–43.Google Scholar
  23. Lentz, G. H. and Wang, K. Residential Appraisal and the Lending Process: A Survey of Issues, Journal of Real Estate Research, 1998, 15:1/2, 11–39.Google Scholar
  24. Lessinger, J. Econometrics and Appraisal, Appraisal Journal, October 1969, 501–512.Google Scholar
  25. Lessinger, J. A ‘Final’ Word on Multiple Regression and Appraisal, Appraisal Journal, July 1972, 449–458.Google Scholar
  26. Lusht, K. M. and Pugh, F. A Research Note on the Effects of Changing the Search Area for Comparable Sales, The Real Estate Appraiser and Analyst, Winter 1981, 34–36.Google Scholar
  27. Lusht, K. M. Real Estate Valuation and Appraisal (introduction to special edition), Journal of the American Real Estate and Urban Economics Association, 1986, 14:2, 175–178.CrossRefGoogle Scholar
  28. Makridakis, S. and Wheelwright, S. C. Forecasting Methods for Management, 5th edition, New York: John Wiley & Sons, 1989.Google Scholar
  29. Macpherson, D. A. and Sirmans, G. S. Neighborhood Diversity and House-Price Appreciation, Journal of Real Estate Finance and Economics, 2001, 22:1, 81–97.CrossRefGoogle Scholar
  30. Meese, R. A. and Wallace, N. E. The Construction of Residential Housing Price Indices: A Comparison of Repeat-Sales, Hedonic Regression, and Hybrid Approaches, Journal of Real Estate Finance and Economics, 1997, 14, 51–73.CrossRefGoogle Scholar
  31. Megbolugbe, I. F. and Johnson, L. Guest Editors’ Introduction and Summary (to special issue on residential appraisal and lending), Journal of Real Estate Research, 1998, 15:1/2, 1–9.Google Scholar
  32. Morton, T. G. Narrow Versus Wide Stratification of Data in the Development of Regression Appraisal Models, American Real Estate and Urban Economics Association Journal, 1976, 4:2, 7–18.CrossRefGoogle Scholar
  33. Pace, R. K. Appraisal Using Generalized Additive Models, Journal of Real Estate Research, 1998a, 15:1/2, 77–99.Google Scholar
  34. Pace, R. K. Total Grid Estimation, Journal of Real Estate Research, 1998b, 15:1/2, 101–114.Google Scholar
  35. Pace, R. K. and Gilley, O. W. Using the Spatial Configuration of Data to Improve Estimation, Journal of Real Estate Finance and Economics, 1997, 14, 333–340.CrossRefGoogle Scholar
  36. Ratcliff, R. U. Valuation for Real Estate Decisions, Santa Cruz, CA: Democrat Press, 1972.Google Scholar
  37. Robbins, M. www.Teauran.com. 2001.Google Scholar
  38. Shultz, S. and King, D. A. The Use of Census Data for Hedonic Price Estimates of Open-Space Amenities and Land Use, Journal of Real Estate Finance and Economics, 2001, 22:3, 239–252.CrossRefGoogle Scholar
  39. Tashman, L. J., et al. Effect of Regressor Forecast Error on the Variance of Regression Forecasts, Journal of Forecasting, 2000, 19, 587–600.CrossRefGoogle Scholar
  40. Tchira, A. Comparable Sales Selection — A Computer Approach, Appraisal Journal, January 1979, 86–98.Google Scholar
  41. Vandell, K. D. Optimal Comparable Selection and Weighting, Journal of the American Real Estate and Urban Economics Association, 1991, 19:2, 213–239.CrossRefGoogle Scholar
  42. Watkins, C. Property Valuation and the Structure of Urban Housing Markets, Journal of Property Investment and Finance, 1999, 17:2, 157–175.Google Scholar
  43. Weirick, W. N. and Ingram, F. J. Functional Form Choice in Applied Real Estate Analysis, Appraisal Journal, January 1990, 57–73.Google Scholar
  44. Whipple, R. T. M. Property Valuation and Analysis, North Ryde, NSW: Law Book Company, 1995.Google Scholar
  45. Wolverton, M. L. and Senteza, J. Hedonic Estimates of Regional Constant Quality House Prices, Journal of Real Estate Research, 2000, 19:3, 235–253.Google Scholar

Copyright information

© Springer Science+Business Media New York 2002

Authors and Affiliations

  • Max Kummerow
    • 1
  • Hanga Galfalvy
    • 2
  1. 1.Department of Property StudiesCurtin UniversityPerthAustralia
  2. 2.Department of StatisticsUniversity of IllinoisUrbana-ChampaignUSA

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