Optimal Comparable Selection and Weighting in Real Property Valuation: An Extension
扩展了Vandell(1991)的房地产估值中可比物选择与加权的最小方差技术，提出了替代目标函数、非负权重约束和更稳健的包含过程，并用原数据展示了方法如何改变结果。
Vandell (1991) recently developed a rigorous minimum variance technique for selecting and weighting comparables in real estate appraisal. This article extends Vandell's methodology in three areas: (1) an alternative objective function; (2) an approach that explicitly recognizes the non‐negativity constraint on comparable weights; and, (3) a more robust comparable inclusion process. Using Vandell's data, we show how our methodology modifies Vandell's results.