Psychological well-being (PWB) is how well a person's mind functions overall. It involves every part of a person's life: work, family, community, etc. PWB in the workplace plays an important role in determining job satisfaction and has attracted much research attention in recent years. These studies focused on the effects of PWB on job satisfaction and job performance. Research published in 2000 showed a strong connection between PWB and job satisfaction. A second study by the same authors in 2007 had similar results. These studies showed that PWB predicts job performance better than job satisfaction does.