Analysing the nationally representative 2011 Workplace Employment Relations Survey (WERS), the National Institute for Social and Economic Research (NIESR) found those workplaces with rising employee job satisfaction also experienced improvements in workplace performance, while deteriorating employee job satisfaction is detrimental to workplace performance. Employee job satisfaction was found to be positively associated with workplace financial performance, labour productivity, the quality of output and service and an additive scale combining all three aspects of performance. Workplaces experiencing an improvement in non-pecuniary job satisfaction – whether measured in terms of the average level of satisfaction in the workforce, or measured in terms of an increase in the proportion “very satisfied” or a reduction in the proportion “very dissatisfied” – also experience an improvement in performance. By contrast, there was no robust association between job-related affect (measured in terms of the amount of time feeling tense, depressed, worried, gloomy, uneasy and miserable) and workplace performance, nor pay satisfaction and workplace performance.

from http://niesr.ac.uk/blog/happier-workers-higher-profits

more at https://www.gov.uk/government/publications/worker-wellbeing-and-workplace-performance