Readme for CBP data
Brendan Price
July 29, 2014

CBP data extracts for 1986 through 2010 may be downloaded from the Census at http://www.census.gov/econ/cbp/index.html.
Data from 1986 through 1997 use 1987 SIC codes. Data from 1998 onwards use NAICS codes.

The national-level US data are available on the CBP website under "Complete U.S. File". The county-level data are available on the CBP website as the "Complete County File." Because the underlying source files are quite large, we provide only the cleaned data.

We provide these files solely for the purpose of facilitating replication of the present paper. If you wish to use the CBP data in your own research, please download fresh extracts from the Census website to ensure that you have the latest version of the data.