University of Chicago GSB

ERIM Database

This data is provided for academic research purposes only. All users of this data should acknowledge the James M. Kilts Center, GSB, University of Chicago in any working paper or publication that uses any portion of this data.

Note: The following databases are temporarily unavailable at this time. They should be available by April 30, 2008. We do apologize for any inconvenience this may cause.


The ERIM database is data collected by the now-defunct ERIM division of A. C. Nielsen on panels of households in two mid-sized midwestern cities. Information is available on the purchases of households in a number of product categories along with household demographic information.

For a subset of households, TV viewing data is available to measure exposure to commercials involving the products in each of the ERIM categories.

Documentation for ACN/ERIM data sets

These files are in a directory tree which starts from acnpanel. The files are accessible via anonymous ftp. There are two branches in the tree. You can access the files using the links below:

Raw Files

This contains the original F1-F11 from the ERIM tapes for each of the erim and single source categories (ssource)

SAS Files

This contains SAS export format files for the main household demographics, household purchase records, and shopping occasion files of both the erim and single source categories. There are also retail price files. see those directories for detailed documentation.

These files are unsupported. You are on your own.

The original ERIM documentation (this is needed only if you want to use the raw files) view pdf file