The only readily accessible information bearing any similarity is ***Impact of heterogeneity and socioeconomic factors on individual behavior in decentralized sharing ecosystems, 2013***. However, the data presented is predominantly about music and movies, with software not mentioned.

[Full article available here](http://www.pnas.org/content/111/43/15322.full.pdf+html)

[Supplemental Data available here](http://www.pnas.org/content/suppl/2014/10/02/1309389111.DCSupplemental/pnas.1309389111.sapp.pdf)

Thanks in advance!
Edit: Formatting