Footsie-style ‘happiness index’ goes online

A Footsie-style “happiness index” that measures the mood of the world on any given day can now be accessed by anyone online.

By accessing the site you can see a wavy line plotted on a graph that rises and falls, in much the same way as the FTSE 100 index.

But the peaks and troughs have nothing to do with the financial health of major companies. Instead, they represent the averaged out emotional state of tens of millions of people.