*Grossman, Sanford J. and Oliver D. Hart (1986), "The Costs and Benefits of Ownership: A Theory of Vertical Integration", Journal of Political Economy, vol.94, pp. 691-719. [http://www.edegan.com/pdfs/Grossman%20Hart%20(1986)%20-%20The%20Costs%20and%20Benefits%20of%20Ownership.pdf pdf]