Abstract #301069

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JSM 2003 Abstract #301069
Activity Number: 476
Type: Contributed
Date/Time: Thursday, August 7, 2003 : 10:30 AM to 12:20 PM
Sponsor: Section on Government Statistics
Abstract - #301069
Title: Quality of Estimates in the Expanded Weekly EIA Gasoline Price Survey
Author(s): Paula E. Weir*+ and Pedro J. Saavedra and Tracy Churchill and Benita J. O'Colmain
Companies: Energy Information Administration and ORC Marco and Macro International, Inc. and Macro International, Inc.
Address: 19343 Mill Dam Place, Landsdowne, VA, 20176,
Keywords: area sample ; variance estimates ; continuity ; weighting ; resampling
Abstract:

The EIA weekly gasoline price survey is a survey that produces estimates of national and regional level gasoline pump prices, as well as separate estimates for select states and cities, by two formulations and three grades of gasoline. An expansion of the survey to include more city estimates required a frame and sample redesign. The sample was redesigned, moving from a multi-phase sample design that used a monthly survey as phase I, to an area sample which selects counties and uses a commercial establishment-level frame. Thus, the new cycle involves a different frame, different sampling procedures and different estimators. This study examines the effect of the redesign on the continuity between the new and the old sample, comparisons with estimates of other surveys of gasoline prices, examination of alternate weighting schemes, comparison of weighting components with other surveys, and variance estimates for the new cycle using resampling techniques.

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