Abstract #301335

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JSM 2003 Abstract #301335
Activity Number: 441
Type: Contributed
Date/Time: Thursday, August 7, 2003 : 8:30 AM to 10:20 AM
Sponsor: Section on Survey Research Methods
Abstract - #301335
Title: Estimation and Comparison of Chained CPI-U Standard Errors With Regular CPI-U Results (2000-2001)
Author(s): Owen J. Shoemaker*+
Companies: Bureau of Labor Statistics
Address: 2 Massachusetts Ave., Room 3655, Washington, DC, 20212-0022,
Keywords: Tornqvist ; stratified random groups
Abstract:

In 2001 the BLS calculated and published the first C-CPI-U set of indexes for the 12 months of 2000. This new C-CPI-U (Chained Consumer Price Index - Urban) is calculated and published every year, with a one year lag, using a Tornqvist formula, and can thus be labelled a "superlative" index. A set of weights are updated yearly, so that a unique set of monthly weights are available for both time t as well as for time t-n. We briefly outline the Tornqvist formula and then the methodology for estimating a set of standard errors for these new chained indexes. We then compare, over the 24-month period of Jan 2000 through Dec 2001, these new superlative index results and their standard errors with the regularly published CPI results and their published standard errors.

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