01788cas a2200265 a 4500 AALejournalIMF009096 230101c9999 xx r poo 0 0eng d 5.00 USD 9781451864410 1018-5941 BD-DhAAL BD-DhAAL Heravi, Saeed. The Difference Between Hedonic Imputation Indexes and Time Dummy Hedonic Indexes / Saeed Heravi, Mick Silver. Washington, D.C. : International Monetary Fund, 2006. 1 online resource (20 pages) IMF Working Papers <strong>Off-Campus Access:</strong> No User ID or Password Required <strong>On-Campus Access:</strong> No User ID or Password Required Electronic access restricted to authorized BRAC University faculty, staff and students 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 Tornqvist "superlative" index. It shows why the results may differ and discusses the issue of choice between these approaches. Mode of access: Internet United States imf Silver, Mick. IMF Working Papers; Working Paper ; No. 2006/181 Full text available on IMF http://elibrary.imf.org/view/journals/001/2006/181/001.2006.issue-181-en.xml IMF e-Library