the theme for 2017 was
aiming to encourage children to make the world a happier more peaceful place.
Where are the world's happiest places?
World Happiness Report 2017, ranks 155 countries by their happiness levels. It found that Norway is the happiest nation. Download the data and consult the methodology on the website.
How can you measure happiness?
The OECD has discussed methodology (in terms of OECD nations) in a number of its reports.
this includes the very interesting
How Was Life? Global Well-being since 1820 - which covers 25 nations.
they have also developed the Better Life Index- which compare well-being across countries, based on 11 topics the OECD has identified as essential, in the areas of material living conditions and quality of life.
Other well known measures include:
Centre for Bhutan Studies and GNH Research's works on Gross National Happiness. relates to public agendas in Bhutan
World Database of Happiness research from Rotterdam University has a bibliography and searchable database of more articles and reports on all aspects of the topic of Happiness