Price Measurement Using Scanner Data: Time‐Product Dummy Versus Time Dummy Hedonic Indexes
نویسندگان
چکیده
منابع مشابه
Brand Dummy Variables in Hedonic Regressions: A Study Using Stereo Receiver Scanner Data∗
Time and brand dummy variables are typically used as controls for omitted variables. The operating assumption made is that time dummies control for unobserved factors affecting price and brand dummies control for unobserved factors affecting quality. We investigate the validity of the latter assumption by explicitly controlling for supply and demand factors in hedonic regressions for stereo rec...
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Weexamine the impact of time aggregation on price change estimates for 19 supermarket item categories using scanner data. Time aggregation choices lead to a difference in price change estimates for chained indexes which ranged from 0.28% to 29.73% for a superlative index and an incredible 14.88%–46,463.71% for a non-superlative index. Traditional index number theory appears to break down with w...
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Hedonic analysis is gaining acceptance as a tool for quality adjustment in goods and services in official statistics and academic research. Computers and houses are by far the two most popular products for which much of the hedonic research been concentrated on. Few comparative studies have, however, looked at the sensitivity of the price indexes that are obtained when different regression appr...
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This paper is concerned with methods that automatically prove termination of term rewrite systems. The aim of dummy elimination, a method to prove termination introduced by Ferreira and Zantema, is to transform a given rewrite system into a rewrite system whose termination is easier to prove. We show that dummy elimination is subsumed by the more recent dependency pair method of Arts and Giesl....
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ژورنال
عنوان ژورنال: Review of Income and Wealth
سال: 2020
ISSN: 0034-6586,1475-4991
DOI: 10.1111/roiw.12468