Skip to main content

Latest Tweets

  • New post: High-performance computing for Economists 2017 edition
    about 2 months ago via VirtualRDC
  • New post: ANNOUNCEMENT: EMERGENCY DOWNTIME on ecco cluster July 21-22 2017
    about 2 months ago via VirtualRDC
  • Page edited: World Statistical Congress 2015 (ISI2015) session on "Synthetic establishment microdata around the
    about 4 months ago via VirtualRDC

Availability of "all-states" QWIPU convenience files

Print Friendly, PDF & Email

We have occasionally heard from users who wish to download QWIPU files for all states in a convenient "package". While tabulations based on these files may suffer from selection bias for early years due varying levels of availability of historical QWI across states (see this graph for an illustration), and we suggest users use the  prototype National QWI, created by John M. Abowd and Lars Vilhuber, when feasible available, we have created just such a convenience package, at

These are data files generated by Lars Vilhuber based on public-use data published by the U.S. Census Bureau. They are simply concatenated versions of all available state-level files for each release. If a state is missing, no data is included. No summary across all available states is provided either. Information on file naming conventions and metadata closely follows the QWIPU Metadata Schema, and users will find more detail on the above download location.

To access the underlying public-use QWI data, and for any further format questions, please go to the QWIPU download page.