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st: SSC archive stats


From   Kit Baum <[email protected]>
To   [email protected]
Subject   st: SSC archive stats
Date   Fri, 1 Dec 2006 12:07:12 -0500

Mark S. asked why the SSC Archive stats that I report each month show many more downloads than the RePEc download stats available from http://logec.repec.org. An easy answer. The SSC Archive stats are calculated from the server on which the ado-files reside. Every time a file of type .ado is accessed--by whatever means--a 'hit' is registered. "Whatever means" involves both the use of a traditional web browser and Stata itself, masquerading as a web browser. When you use the -ssc-, -adoupdate- or -net- commands, Stata uses the HTTP protocol to download the file.

The hits registered in RePEc download statistics represent the number of users who do not follow instructions (or for security reasons are not allowed to do so). They represent those users who use a regular web browser to access IDEAS or EconPapers, navigate to the SSC page, and click on the ado-file. On the page they view, they are exhorted not to do so, especially if they are Windows users. But many do not heed the advice. But a Stata user giving the command 'ssc install outreg' will not access any RePEc site, so their download is not registered as RePEc activity.

The SSC archive stats are definitive, as they are derived from the webserver logfile of about 1.4 million HTTP transactions per month (the webserver handles many sites besides the SSC Archive).


Kit Baum, Boston College Economics
http://ideas.repec.org/e/pba1.html
An Introduction to Modern Econometrics Using Stata:
http://www.stata-press.com/books/imeus.html


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