Systematic review of the impact of leader-member exchange on employee voice: a meta-analysis approach

In organization and management studies, the collective expression of constructive ideas, dissatisfactions, formal and informal participation in influencing the development of the organization is known as the employee's voice. Studies show that the two-way relationship between employees and supervisors and leader-member exchange (LMX) are factors influencing voice behavior. The purpose of this research is to investigate the impact of leader-member exchange (LMX) on employee voice. In this research, in order to understand more comprehensively the impact of leader-member exchange on the employee's voice a systematic review and meta-analysis approach were used. From the total of 88 articles obtained in the initial search, according to a systematic protocol 33 articles were analyzed using the meta-analysis method with two fixed and random effects models and using CMA 2 software. The results show that according to the heterogeneity of the reviewed studies, the influence of the leader-member relationship on the voice of the employees is confirmed. Also, the results of the Fail-Safe N test show the stability and immutability of the results of this research. The results of this research show that employees express their ideas when there is a strong LMX relationship between leaders and followers. This type of encouragement allows employees to be more creative and take risks and fostering innovative work behaviors.