"This study suggests that transformational leadership influences union citizenship behavior by fostering a covenantal relationship between the union and the union member. A framework for covenantal relationships is developed from social exchange and social identity theories. Transformational leadership behavior was found to be strongly related to perceived union support, a social exchange construct. The results also indicated that there are positive and significant relationships between other social exchange constructs such as felt obligation and trust. Social identity theory is used to augment social exchange theory in explaining the process by which transformational leadership behaviors relate to union citizenship behaviors through union-based self-esteem. Limitations of the study, implications for union management, and directions for future research issues are discussed."

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