Nonparametric Estimation of Dynamic Hedonic Price Models and the Construction of Residential Housing Price Indices
用非参数局部加权回归（LWR）估计特征价格模型，避免预设函数形式，并利用阿拉米达和旧金山两县数据构建了地区特定的住宅价格指数。
Parametric specifications for hedonic price equations are estimated using a data set from Alameda and San Francisco Counties and are compared to estimates using a nonparametric technique called locally weighted regression, LWR. LWR permits flexible estimation of the hedonic's curvature at median attributes and is less sensitive than standard regression techniques to the influence of unusual observations. The technique also avoids imposing a single functional form across time and municipalities. The LWR estimates of municipality‐specific hedonics are then used to obtain implicit prices for housing attributes and to derive municipality‐specific price indices. The results of extensive diagnostic checks of our technique are also reported.