A new, inclusive collection of 11,000 agricultural biotechnology utility patents issued between 1988 and 2002 is related to characteristics of agbiotech, seed, chemical, diversified multinational and European firms. The patents are classified into nine technologies, and mergers and acquisitions...

Concentration in several global agricultural input industries has risen significantly; by 2009, the largest four firms in the crop seed, agricultural chemical, animal health, animal genetics/breeding, and farm machinery sectors accounted for more than 50 percent of global market sales in each...