If we take into consideration the user locale, we observed that 46% of these users come from the Northeast region, which is very interesting, since, here in Brazil, the most economical region (or, in this case, from where have the most job offers) is the southeast region. If we take into consideration the specific State, the most active are Paraná (13.65%), followed by Ceará (12.37%) and followed by (11.25%). All theses states are not part of the southeast region. Nonetheless, this kind of analysis is very difficult to perform, since the user can omit the location field (which represents 8% of the total), provide unreliable information, or use acronym, nicknames, etc. But, if we can draw a chart of the Brazilian open-source contribution per state, it may look like this one.
Now I’m wondering if these data are only related to github, or if it could be possible to generalize. Someday I want to correlate this result with stackoverflow, or other similar forge.
If you want to read more about, please check out our paper.