Agricultural Biotechnology's Complementary Intellectual Assets
提出并检验了一个假说：植物育种和种子行业的剧烈重组，部分是为了利用创造转基因生物所需知识资产之间的互补性。研究使用专利、田间试验通知和企业特征数据，发现行业整合下互补资产的协调有所增强。
We formulate and test a hypothesis for the dramatic restructuring that the plant breeding and seed industry has recently undergone: the reorganization can be explained in part by the desire to exploit complementarities between intellectual assets needed to create genetically modified organisms. This hypothesis is tested using data on agricultural biotechnology patents, notices for field tests of genetically modified organisms, and firm characteristics. The presence of complementarities is identified with a positive covariance in the unexplained variation of asset holdings. Results indicate that coordination of complementary assets has increased under the consolidation of the industry. © 2003 President and Fellows of Harvard College and the Massachusetts Institute of Technology.