Abstract #300836

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JSM 2003 Abstract #300836
Activity Number: 12
Type: Topic Contributed
Date/Time: Sunday, August 3, 2003 : 2:00 PM to 3:50 PM
Sponsor: Section on Survey Research Methods
Abstract - #300836
Title: Estimating Low-Value Exports from the U.S.
Author(s): Patrick J. Cantwell*+ and Ryan Fescina and Melvin McCullough
Companies: U.S. Census Bureau and U.S. Census Bureau and U.S. Census Bureau
Address: 14603 Colonels Choice, Upper Marlboro, MD, 20772-2884,
Keywords: truncation ; missing data ; borrowing strength ; Automated Export System
Abstract:

Each month the Census Bureau receives documents describing all U.S. exports over $2,500. Exporters are not required to report their "low-value" exports, i.e., those valued at or under $2,500. Factors determined in the late 1980's to estimate the low-value component of total exports for each country remain the same even as export patterns have changed. We propose a new method to estimate the low-value component that (1) accurately represents what is currently being exported, and (2) can adapt over time with minimal review to reflect changes in export patterns. In our research, we analyze data from the Automated Export System. Although most exporters report their data under this system, only about 20% provide details on their low-value exports. Under our approach, we divide the low-value component for a country into several pieces according to commodity groups and modes of transport, and derive factors for each piece. Where fewer data are available, information is drawn from larger groups or other countries. Finally, we combine the factors, weighing the amounts of data available and the variability and predictive ability of the information.


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