Investigating the Effect of Organizational Silence and Voice on Employees\' Performance ‎Based on the Mediating Role of Ethical Leadership ‎(Case Study: Tehran Metropolitan Fire Station)‎

Introduction: The lack of expressing an opinion in employees working in organizations can cause a phenomenon called organizational silence. Organizational silence has a damaging effect on employee’s productivity. The importance of organizational sound and silence in organizational performance is currently one of the fundamental organizational challenges. Method: In this was descriptive study, correlation analysis and regression analysis were used to analyze the relationship between the studied factors. Using Morgan table and stratified random sampling method, 317 subjects were selected and assessed by the structural equation modeling (SEM) with SmartPLS software. Results: The results showed that there is a significant relationship between organizational silence and performance with a path coefficient of 0.179 and a significant difference of 3.289, between organizational voice and performance with a path coefficient of 0.393 and a significant level of 6.766, between organizational voice and ethical leadership with a path coefficient of 0.247 and a significance level of 3.883,  and also between the focal variables (silence and organizational voice) and organizational performance with moral leadership with a path coefficient of 0.315 and a significance of 485/5. Finally, the results indicated the suitability of the model. Conclusion: The results showed that there is a significant relationship between organizational sound and silence and employee performance considering the mediating role of moral leadership in the organization. It can concluded that one of the most important tasks of firefighters and firefighting leaders and managers is to identify and break the climate of silence and also motivate the employees to talk in their workplace for subsequently improving their performances.