"The current study tests key linkages of the target similarity model by examining relationships among multifoci justice, social exchange, and supervisor ratings of employee citizenship behavior. We found support for the model when examining three different workplace targets simultaneously (i.e., the organization as a whole, supervisors, and workgroup members) using a sample of hospital nurses in the United States. Specifically, we found that: (1) employee perceptions of workgroup fairness, supervisor fairness, and organizational fairness differentially and positively predicted perceived workgroup support (PGS), perceived supervisor support (PSS), and perceived organizational support (POS), respectively and (2) PGS, PSS, and POS differentially and positively predicted citizenship behavior toward the workgroup, toward the supervisor, and toward the organization, respectively. Theoretical and practical implications for the strategic management of human resources are discussed, as are limitations of the study and suggestions for future research. "

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