JSM 2004 - Toronto

Abstract #301154

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Activity Number: 100
Type: Topic Contributed
Date/Time: Monday, August 9, 2004 : 10:30 AM to 12:20 PM
Sponsor: Section on Survey Research Methods
Abstract - #301154
Title: A Record Linkage Strategy to Match New Source Lists
Author(s): Thomas M. Pordugal*+
Companies: National Agricultural Statistics Service
Address: 1400 Independence Avenue, S.W., Washington,, DC, 20250-2007,
Keywords: record linkage ; List Frame ; SuperStan ; SuperMatch
Abstract:

The National Agricultural Statistics Service (NASS) maintains a List Frame of all known and potential farm operators and agribusinesses. To keep the List Frame as complete and up-to-date as possible, the NASS continually receives new data lists from a variety of sources. These new lists are matched against the existing List Frame using probabilistic record linkage methodology. The new lists often contain different types and quality of information requiring different matching strategies. At a minimum, the lists contain name and address information. Different matching strategies, which include the blocking of variables within a pass, the matching variables used within a pass, and the determination of the number of passes, are required for different new lists. This paper presents an overview of the steps taken to match these new source lists to the NASS List Frame, guidelines for developing matching strategies, and a description of the record linkage software features used to process the data.

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