摘要：The paper presents a model developed to examine the effects of industry concentration on market power and cost efficiency in the seed industry. In addition, the paper presents preliminary measures of the relative strengths of these effects for the case of the U.S. corn seed industry over the past 3 decades. The model uses conjectural elasticities and is estimated using data collected from USDA sources. The empirical results allow us to distinguish between the market power and cost effects of concentration, and to ascertain the tradeoff between the cost efficiency and market power resulting from higher concentration in the corn seed industry.
