Performance differences among strategic group members
研究了同一战略群组内企业为何绩效不同，基于美国制药行业1963-82年数据，分析了历史差异和环境变化对风险与回报关系的影响。
Abstract Whether and why members of the same strategic group would experience different performance results has received little attention in previous research. These questions are addressed in this paper. First, conventional theory on the relationship between firm performance and strategic group membership is reviewed. Then a theory is developed as to how historical differences among strategic group members may result in performance differences. An empirical analysis of risk and return relationships is conducted, centered on the nature of environmental change characterizing the industry. The empirical setting throughout is the U.S. pharmaceutical industry over the period 1963–82.