These rankings are based on many factors but primary controlling factors mentioned in the report are Political unrest, Health, Friends, Lack of good governess, Peace fullness and off course Money, but it does not mean money always bring happiness and being a richer country does not supposedly mean a happy country. So according to the study to become happy is to make more friends and reach out.
It also listed a number of suggestions for governments to promote happiness among their citizens including helping people meet their basic needs, reinforcing social systems, implementing active labour policies, limiting the scale of greenhouse gas emissions, improving mental health services, promoting physical health, and helping the public resist hyper-commercialism.
Happy country rankings:
8. New Zealand
11. United States
12. Cost Rica
17. United Arab Emirates
The report can be found viewed here.
What is gross national happiness ?