The Difference Between Hedonic Imputation Indexes and Time Dummy Hedonic Indexes
July 1, 2006
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Summary
Statistical offices try to match item models when measuring inflation between two periods. For product areas with a high turnover of differentiated models, however, the use of hedonic indexes is more appropriate since they include the prices and quantities of unmatched new and old models. The two main approaches to hedonic indexes are hedonic imputation (HI) indexes and dummy time hedonic (DTH) indexes. This study provides a formal analysis of the difference between the two approaches for alternative implementations of the Törnqvist "superlative" index. It shows why the results may differ and discusses the issue of choice between these approaches.
Subject: Commodity markets, Consumer price indexes, Price indexes, Silver
Keywords: WP
Pages:
20
Volume:
2006
DOI:
Issue:
181
Series:
Working Paper No. 2006/181
Stock No:
WPIEA2006181
ISBN:
9781451864410
ISSN:
1018-5941
