One study has found that when employers are transparent about pay, employees tend to be more motivated and are able to collaborate more effectively. The findings are consistent with many other studies showing that employees tend to do better when salary information is made public; their productivity and quality of work improves significantly. On the other hand, when employers do not disclose employee salary, employee performance declines and can create the conditions for discrimination to occur. Specifically, discrimination against women thrives under pay secrecy, as evidenced by a recent gender discrimination lawsuit against Google, who does not release salary data publicly. Although transparency cannot solve every problem, it is a start for companies looking to improve employee performance.
See "Employees are more motivated when companies are transparent about salary", Kristin Wong, New York Magazine, June 7, 2017