For a while now, QWI files on ECCO have been available at
instead of the "old" location at
We have now removed the "old" location, freeing up necessary disk space. Please adjust any programs you may not yet have adjusted.
This does not affect the download location for our QWI download mirror, which remains at http://download.vrdc.cornell.edu/qwipu/.
We are experiencing a failed UPS in the rack hosting the download and repository servers. Staff are working on it.
[UPDATE 2014-05-20 5PM] Back up again.
We had website problems (DNS was changed) yesterday for
Everything should be back to normal now (DNS might still be propagating for some). Sorry for the inconvenience. Continue reading →
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
Continue reading →
For an arcane reason, our mirror script skipped New Hampshire QWI files (sorry to anybody in or from the Granite State). This is now fixed for R2013Q3 and R2013Q4. Prior releases were not affected, future releases should no longer display that bug.