Aghion, PhilippeGriffith, RachelHowitt, Peter2017-11-062006Aghion, Philippe, Rachel Griffith, and Peter Howitt. 2006. “Vertical Integration and Competition.” American Economic Review 96 (2) (May): 97–102. doi:10.1257/000282806777211595.0002-8282http://nrs.harvard.edu/urn-3:HUL.InstRepos:34330170en-USJournal Article2017-11-0610.1257/000282806777211595