Public organizations are in continuous need of innovation in their products, services, and processes in order to grow and survive. Innovative work behaviors play important role in employee innovation in these organizations. The present study aimed to test the roles of ethical and knowledge sharing behaviors on innovative work behavior in public organizations. The questionnaire consisting of 44 items was used. The data were collected from 266 participants in public organizations, and data analysis was performed through Structural Equation Modeling -SEM-. According to the results, ethical behaviors had positive and significant effect on innovative work behavior, and knowledge sharing behaviors mediate the effect of ethical behavior on innovative work behaviors. The proposed model highlighted the importance of sharing mistakes and best practices in an organization to develop innovative work behavior. Furthermore, ethical behaviors were likely to be more significant predictors of innovative work behavior through knowledge sharing behaviors.

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