An official website of the United States government
United States Department of Labor
United States Department of Labor
The .gov means it's official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information,
make sure you're on a federal government site.
The site is secure.
The
https:// ensures that you are connecting to the official website and that any
information you provide is encrypted and transmitted securely.
Office of Survey Methods Research
SHARE ON:
More Information
Published Year: 2007
Survey/Program(s): International Price Program (IPP)
Catalog: Statistical Survey Paper
Download PDF
Application of the Bootstrap Method in the International Price Programs
Abstract
The International Price Program (IPP) collects data on United States trade with foreign nations and publishes monthly indexes on the import and export prices of U.S. merchandise and services. The IPP employs a three stage PPS design in which establishments, then broad product categories traded within establishments, and finally items within a category, are selected. Certainty selections can occur in the first two stages. We present three variations of the bootstrap rescaling method adapted to the IPP sample design: 1) sampling at the first stage, treating certainty units as probability units, 2) sampling that allows for certainties, and 3) a procedure that extends the previous method by collapsing single item strata. Finally, we compare the precision and bias of the three approaches by simulating 1000 samples of a simulated universe using the IPP sampling methodology.