To examine the importance of the strategic group concept to the Strategic Management of firms, the following research questions were addressed in the context of the U.S. pharmaceutical industry for the period 1963-1982: (1) What is "strategic" about strategic groups? (2) Do strategic groups...

This paper discusses when firms may expect economies in the accumulation of resources (asset mass efficiencies). Specifically, we describe situations in which the accumulation of a resource benefits from a “success breeds success” dynamic that creates an exponentially growing gap between...

This paper discusses the concept of time compression diseconomies and its importance to the sustainability of competitive advantage. It focuses on a key driver of time compression costs, the time-dependency of resource accumulation, and illustrates the effects of three characteristics of this...