JSM 2004 - Toronto

Abstract #301138

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Activity Number: 213
Type: Topic Contributed
Date/Time: Tuesday, August 10, 2004 : 10:30 AM to 12:20 PM
Sponsor: SSC
Abstract - #301138
Title: Monitoring Survey Processes of the Canadian Monthly Wholesale and Retail Trade Survey
Author(s): Mark J. Majkowski*+ and Hélène Bérard and Catherine Dufour and Susie Fortier
Companies: Statistics Canada and Statistics Canada and Statistics Canada and Statistics Canada
Address: Tunney's Pasture, Ottawa, ON, K1A 0T6, Canada
Keywords: monitoring ; diagnostic tools ; level estimates ; trend estimates
Abstract:

The Canadian Monthly Wholesale and Retail Trade Survey (MWRTS) produces monthly estimates for sales and inventories at various province and industry levels. The MWRTS has recently been redesigned in part to provide estimates for the new North American Industry Classification System (NAICS) and to take full advantage of administrative data from the Goods and Services Tax program. The redesign also addressed the need to maintain the estimate quality, reduce cost and respondent burden, update computer systems, and harmonize annual survey concepts. As part of the redesign, different tools were developed to ensure proper monitoring of survey steps. The first type of 'diagnostic' tool aims to assess the functionality of the modules in each survey step while the second type involves monthly descriptive statistics, such as number of live units in the sample, imputation method used, and recurrent top contributors. These statistics are studied longitudinally to detect changes that affect the estimates. Finally, a third set of diagnostic tools is used for analysis of level and trend estimates. The monitoring tools used monthly for this survey will be described.

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