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MIT’s Technology Review magazine created a map of the 40 happiest countries in the world, based on research data from Columbia University’s Earth Institute. According to the list, Denmark ranks as the happiest country, followed by Finland, Norway, the Netherlands and Canada. At the bottom of this list are Jamaica, Argentina, Trinidad and Tobago, Guatemala and the Czech Republic. Countries not on this list ranked even lower.

For a detailed information concerning the methodology used and sources, see: The Earth Institute – Columbia University: First World Happiness Report Launched at the United Nations