Companies are being urged to allow staff to rate their managers' ability, because telling a boss what they think of them through constructive feedback is found to be good for workers' health.
Giving managers feedback is more likely to make employees "happy, healthy and stress-free", psychologists believe.
Research presented at the British Psychological Society's occupational psychology conference found that the relationship between staff and line managers was the most commonly reported cause of stress in the workplace.
A study of 150 managers and 500 workers by Emma Donaldson-Feilder, from Affinity Health At Work, found that, when bosses received feedback from their staff, they were more likely to change their style and be seen as more effective, reports Sky News.
Managers who did not receive any feedback were less likely to change their management behaviour, according to the research.
Donaldson-Feilder said: "Without holding a mirror up to a person, they can have blind spots about how they come across and, if they think they are already good enough, why should they change?
"The consequences of stress are pervasive - those under stress may experience psychological symptoms, such as anxiety or depression, physiological symptoms, such as palpitations or raised blood pressure, or cognitive symptoms such as reduced mental capacity.
"Stress is a significant cause of sickness absence and this puts pressure on those left behind to run the business, creating a cycle of uncomfortable pressure with costs to the individual and to the company," Donaldson-Feilder added.