The economics of mental health in the workplace: what do we know and where do we go?

To provide an overview of the economic impact of poor mental health in the workplace and assess the extent to which economic evaluation has been used to further the case for investment in workplace based mental health programmes. Rapid scoping review of published and grey literature. The socio-economic costs of poor mental health in the workplace are substantial but conservative, as few studies have included productivity losses from work cutback, as well as absenteeism. While few economic evaluations of workplace based mental health interventions were identified, the available evidence base suggests that they have the potential to be highly cost effective. Much of this evidence may be from the US and be less applicable elsewhere; it may also have been solely published in company documents making assessment of methodological quality difficult. The potential economic case for workplace based mental health interventions appears good. More collaboration between policy makers and the private sector would help facilitate rigorous and transparent economic evaluations. A number of evaluations are planned. The challenge is to build on these initiatives, in order to address what remains a major gap in our knowledge on the economics of mental health.