Personal independence and freedom are more important to people's well-being than wealth, a new study concludes.
The studies looked at data from three different psychological tests familiar to therapists:
The General Health Questionnaire, which measures distress in terms of anxiety and insomnia, social problems, severe depression and physical symptoms of mental distress, such as unexplained headaches and stomach aches.
The Spielberger anxiety inventory, which evaluates how anxious respondents feel at a particular moment.
The Maslach Burnout Inventory, which screens for emotional exhaustion, depersonalisation and lack of personal accomplishment.