Graff, G.D., S.E. Cullen, K.J. Bradford, D. Zilberman, and A.B. Bennett. 2003. The public-private structure of intellectual property ownership in agricultural biotechnology. Nature Biotechnology 21(9):989–995.

Graham, J., and A. Martin. 2004. Biotech wheat pits farmer vs. farmer. Chicago Tribune, January 28. p. C-7, News section.

Guehlstorf, N. 2008. Understanding the scope of farmer perceptions of risk: Considering farmer opinions on the use of genetically modified (GM) crops as a stakeholder voice in policy. Journal of Agricultural and Environmental Ethics 21(6):541–558.

Hayenga, M.L. 1998. Structural change in the biotech seed and chemical industrial complex. AgBioForum 1(2):43–55.

Hill, T. 2009. Personal communication to the Committee on the Impact of Biotechnology on Farm-Level Economics and Sustainability. February 26. Washington, DC.

Jank, B., J. Rath, and H. Gaugitsch. 2006. Co-existence of agricultural production systems. Trends in Biotechnology 24(5):198–200.

Jussaume, R.A., Jr., K. Kondoh, and M. Ostrom. 2004. An investigation into the potential introduction of Roundup-Ready wheat. Paper presented at the annual meetings of the Rural Sociological Society (Sacramento, CA, August 15–18, 2004).

Just, D.R., S.A. Wolf, S. Wu, and D. Zilberman. 2002. Consumption of economic information in agriculture. American Journal of Agricultural Economics 84(1):39–52.

Kaup, B.Z. 2008. The reflexive producer: The influence of farmer knowledge upon the use of Bt corn. Rural Sociology 73(1):62–81.

Kershen, D.L. 2004. Legal liability issues in agricultural biotechnology. Crop Science 44(2):456–463.

Klintman, M. 2002. Arguments surrounding organic and genetically modified food labelling: A few comparisons. Journal of Environmental Policy & Planning 4(3):247–259.

Kloppenburg, J.A. 1984. The social impacts of biogentetic technology in agriculture: Past and future. In The social consequences and challenges of new agricultural technologies. eds. G.M. Berardi and C.C. Geisler, pp. 291–321. Boulder, CO: Westview Press.

Leonard, C. 2006. Monsanto, Pioneer fight for seed market. The Washington Post, December 8. Technology section. Available online at http://www.washingtonpost.com/wp-dyn/content/article/2006/12/08/AR2006120800030.html. Accessed November 3, 2009.

Lerner, J., and J. Tirole. 2005. The economics of technology sharing: Open source and beyond. The Journal of Economic Perspectives 19(2):99–120.

Lesser, W. 1998. Intellectual property rights and concentration in agricultural biotechnology. AgBioForum 1(2):56–61.

Marion, B.W., and R.L. Wills. 1990. A prospective assessment of the impacts of bovine somatotropin: A case study of Wisconsin. American Journal of Agricultural Economics 72(2):326–336.

Monsanto. 2010. Academic research agreements. Available online at: http://www.monsanto.com/monsanto_today/for_the_record/academic/research/agreements.asp. Accessed March 22, 2010.

Naylor, R.L., W.P. Falcon, R.M. Goodman, M.M. Jahn, T. Sengooba, H. Tefera, and R.J. Nelson. 2004. Biotechnology in the developing world: A case for increased investments in orphan crops. Food Policy 29(1):15–44.

Nytes, A.J., D.K. Combs, G.E. Shook, R.D. Shaver, and R.M. Cleale. 1990. Response to recombinant bovine somatotropin in dairy cows with different genetic merit for milk production. Journal of Dairy Science 73(3):784–791.

Phillipson, M. 2001. Agricultural law: Containing the GM revolution. Biotechnology and Development Monitor (48):2–5.

Pimentel, D., M.S. Hunter, J.A. Lagro, R.A. Efroymson, J.C. Landers, F.T. Mervis, C.A. McCarthy, and A.E. Boyd. 1989. Benefits and risks of genetic engineering in agriculture. BioScience 39(9):606–614.