The focus of this paper is on three major questions: (1) what is the theoretical rationale for the strategic group concept?; (2) does strategic group membership have performance implications?; and (3) are strategic groups and membership in strategic groups stable characteristics of industries? A statistical procedure is proposed to longitudinally identify strategic groups. The empirical setting is the U.S. pharmaceutical industry over the period 1963–82. While performance differences are found in terms of market share, profitability differences between groups are not observed. Neither are differences found in terms of risk and risk-adjusted performance. These results are attributed to the existence of performance variation within each strategic group. A dynamic model of competitive repositioning is proposed which helps integrate the findings from the study.

This essay examines the relationship between strategic management and economics. It introduces the special issue on this same topic by providing a guide to the eight papers contained in the special issue, and it offers the guest editors viewpoints on the contributions of each discipline to the other. The essay notes the major contribution from economics has been primarily from the industrial organization literature, with promises of important gains to be made from the ‘new’ economics as it breaks away from the neoclassical theory of the firm. Contributions from strategic management to economics are noted. Areas for further research utilizing the relationship between strategic management and economics are also indicated.

How can executives achieve a match between expected external environmental conditions and internal organizational capabilities that facilitates improved performance? This paper argues that a firm's choice of ‘reference points’ can help achieve strategic alignment capable of yielding improved performance and potentially even a sustainable competitive advantage. Building upon prospect theory and other relevant theoretical perspectives, the strategic reference point (SRP) matrix is developed. A firm's SRP consists of three dimensions: internal capability, external conditions, and time. A theory is developed which posits an optimal SRP structure, and propositions are offered which articulate the expected relationships between the SRP, strategic choice behavior, and firm performance. The paper closes with some suggestions for using strategic reference points in both research and practice.

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.

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