Strategic groups, competitive groups and performance within the U.K. pharmaceutical industry: Improving our understanding of the competitive process
研究了1998-2002年间英国制药行业的战略群组，发现存在6到8个战略群组，且这些群组与绩效有显著关系，并比较了战略群组与竞争群组的区别。
Abstract Strategic group research originated in the 1970s and a number of notable studies centered on the U.S. pharmaceutical industry. Results were, however, conflicting. This paper explores the nature of strategic groups in the U.K. pharmaceutical industry. The study confirms the presence of between six and eight strategic groups across the period studied, 1998–2002. The study also demonstrates a statistically significant relationship between these strategic groups and performance using three performance measures. The paper then compares strategic groups with competitive groups and concludes that the distinction is important and may explain the contradictory findings in earlier strategic group research. Copyright © 2007 John Wiley & Sons, Ltd.