Mobility barriers and strategic groups
提出并演示了一种基于移动壁垒识别战略集团的方法，发现这些集团具有成员稳定性和盈利差异，对研究企业战略和产业结构的学者有参考价值。
Abstract A procedure for identifying strategic groups based on mobility barriers is recommended and illustrated. The strategic groups identified were observed to exhibit group membership stability and differences in profitability.