Coase's Penguin, or, Linux and The Nature of the Firm
http://www.benkler.org/CoasesPenguin.PDF

The Political Economy of Open Source Software (2000)
http://www.ciaonet.org/wps/wes02/

papers on open source software and related topics by Eric von Hippel
http://web.mit.edu/evhippel/www/Publications.htm

Developing Open Source Software to Advance High End Computing (2000)
http://www.ccic.gov/pubs/pitac/pres-oss-11sep00.pdf