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Comparing the Accuracy of the Minimum-Variance Grid Method to Multiple Regression in Appraised Value Estimates


  • Tsong-Yue Lai
  • Ko Wang


The adjustment-grid method and the multiple-regression method are the two most frequently used techniques in the sales comparison approach. This paper demonstrates that although both techniques provide unbiased estimators, the minimum-variance grid estimator should result in a smaller standard deviation than the multiple-regression estimator. A technique is also derived to estimate the confidence interval or to perform hypothesis tests for the minimum-variance grid estimator. Copyright American Real Estate and Urban Economics Association.

Suggested Citation

  • Tsong-Yue Lai & Ko Wang, 1996. "Comparing the Accuracy of the Minimum-Variance Grid Method to Multiple Regression in Appraised Value Estimates," Real Estate Economics, American Real Estate and Urban Economics Association, vol. 24(4), pages 531-549.
  • Handle: RePEc:bla:reesec:v:24:y:1996:i:4:p:531-549

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    Cited by:

    1. George H. Lentz & Ko Wang, 1998. "Residential Appraisal and the Lending Process: A Survey of Issues," Journal of Real Estate Research, American Real Estate Society, vol. 15(1), pages 11-40.
    2. Sam K. Hui & Alvin Cheung & Jimmy Pang, 2010. "A Hierarchical Bayesian Approach for Residential Property Valuation:Application to Hong Kong Housing Market," International Real Estate Review, Asian Real Estate Society, vol. 13(1), pages 1-29.

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