Hedonic价格模型在样本特征存在缺失时的改进——以绿色建筑的溢价研究为例

发布时间：2019-05-13 12:46

【摘要】：Hedonic价格模型可用来分析商品价格与其特征属性的关系,常被用来研究特征差异较大的商品。为解决Hedonic价格模型应用中常遇到的样本特征属性缺失的问题,文章对Hedonic价格模型通过添加辅助变量来进行改进。结果表明:(1)改进后的模型与原模型具有相同的隐含价格,添加变量的回归系数就等于缺失特征属性的估值;(2)通过仿真随机模拟,发现本改进方法回归结果更加接近特征完整时的结果;(3)将改进的模型应用于深圳市写字楼市场的绿色建筑溢价研究,有效解决了特征缺失的问题,计算出绿色建筑溢价为14.6%。因此,更加适用于有特征缺失的样本存在的情形。
[Abstract]:Hedonic price model can be used to analyze the relationship between commodity price and its characteristic attributes, and is often used to study goods with large characteristics. In order to solve the problem of missing sample feature attributes often encountered in the application of Hedonic price model, this paper improves the Hedonic price model by adding auxiliary variables. The results show that: (1) the improved model has the same implicit price as the original model, and the regression coefficient of adding variables is equal to the estimation of missing feature attributes; (2) through simulation and random simulation, it is found that the regression results of this improved method are closer to those of complete features. (3) the improved model is applied to the study of green building premium in Shenzhen office market, which effectively solves the problem of lack of features and calculates that the premium of green building is 14.6%. Therefore, it is more suitable for the existence of samples with missing features.
【作者单位】：北京大学环境与能源学院;
【基金】：深圳市科技计划项目(基础研究)“深圳城市热环境、植被蒸腾及其降温效果的实验研究”(项目号:JCYJ20140417144423187) 深圳市知识创新计划“深圳市有机溶剂废水的零排放与资源化平台建设及示范研究(重点实验室提升,项目号:JCYJ20130331145022339) 深圳市哲学社会科学”十二五“划课题”圳市政公用事业特许经营法律制度研究”项目号:125C055)
【分类号】：F299.23

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