If you're a manager, empowering others and encouraging them to have a voice is usually a good idea. It fosters a sense of control, which minimises the risk of stress, particularly that associated with risk to health. It also heights trust, strongly associated with improved well-being and employee engagement.
There is though a critically important 'Yes But'. And that is you'd better mean it, because if employees believe It's a sham and you're not genuine about giving people a voice (so-called 'pseudo voice') it will almost certainly backfire horribly.
Not only will employees keep their views or concerns to themselves, it appears to increase the likelihood of conflict at work. For details, Please check out this excellent blog from BPS Occupational Digest on Dutch research from a healthcare organisation.
So don't do a survey or put out a suggestion box unless you're genuinely prepared to act on what you find.
Business Psychologist, Alan Bradshaw, is a specialist in the fields of stress management and the management of wellbeing at work.