UN conference aims to add happiness to other economic indicators
2 April 2012 Last updated at 11:19 BST
Can a country's happiness really be measured? The tiny kingdom of Bhutan thinks so.
The country's Prime Minister, Jigme Y. Thinley, is to host a special UN summit in New York. On the agenda is how to create an economic system that takes into account happiness.
Russell Trott reports.