文章基本信息

标题：The Age–Period–Cohort Problem in Hedonic House Prices Models
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作者：Chung-Yim Yiu ; Ka-Shing Cheung
期刊名称：Econometrics
印刷版ISSN：2225-1146
出版年度：2022
卷号：10
期号：1
页码：1-11
DOI：10.3390/econometrics10010004
语种：English
出版社：MDPI, Open Access Journal
摘要：The age–period–cohort problem has been studied for decades but without resolution. There have been many suggested solutions to make the three effects estimable, but these solutions mostly exploit non-linear specifications. Yet, these approaches may suffer from misspecification or omitted variable bias. This paper is a practical-oriented study with an aim to empirically disentangle age–period–cohort effects by providing external information on the actual depreciation of housing structure rather than taking age as a proxy. It is based on appraisals of the improvement values of properties in New Zealand to estimate the age-depreciation effect. This research method provides a novel means of solving the identification problem of the age, period, and cohort trilemma. Based on about half a million housing transactions from 1990 to 2019 in the Auckland Region of New Zealand, the results show that traditional hedonic prices models using age and time dummy variables can result, ceteris paribus, in unreasonable positive depreciation rates. The use of the improvement values model can help improve the accuracy of home value assessment and reduce estimation biases. This method also has important practical implications for property valuations.
关键词：age–period–cohort problem;hedonic price models;multicollinearity;improvementvalues