alization of groups as the sum of the individual properties of their members. A counter proposition, however, is that groups represent an amalgam of individual and structural attributes. In either instance, however, organizational management is confronted with a formidable problem.
Social identity is defined as the individual's knowledge of personal membership in specific social groups, together with the emotional value and significance placed on such membership by the individual (Milliken & Martins, 1996). Social identity, thus, is closely related to self-concept. Individuals apply the process of categorization to "partition the world into comprehensible units" (Abrams & Hogg, 1994, p. 2). This process is accorded a central role in social identity theory. Categorization involves the psychological accentuation of differences between categories and the attenuation of differences between objects within cat
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