Happiness = (positive words) – (non-positive words)

5.1 How to calculate it?
Facebook itself calculates the index, by automatically and anonymously analyzing the number of positive and negative words in status updates for selected Countries. Of course, this means that, even when facebookers are just passing along a story, the words contained in a breaking-news can influence the index. For example, the Australia’s index was lowest on Feb. 13, 2008, the day Prime Minister Kevin Rudd apologized in Parliament to indigenous Australians, reflecting the 4 percent of Aussie status updates containing the word “sorry.”
Data is aggregated in graphs, containing several metrics. GNH, represents Facebook measure of Gross National Happiness. Positivity and Negativity represent the two components of GNH: the extent to which words used on that day were positive and negative. Gross National Happiness is the difference between the positivity and negativity scores, though they are interesting to view on their own. The same model is applied separately to each country analyzed. Each model is thus calibrated differently, which eliminates effects due to differences in the countries’ population and language use. .

5.2 What does it mean?
These are some findings, as published on March 2010 by Facebook Data Team:

* Christmas, New Year’s Eve and Valentine’s Day are still among the happiest days for all of these nations, and Friday, Saturday and Sunday are happiest days of the week.

* Canadians are happier the day before Canadian Thanksgiving (a Sunday) than on the actual Canadian Thanksgiving Day (a Monday).

* Happiness levels in the UK seem to have the least variation, with the fewest large peaks among all the graphs due to holidays.

5.3 Where are references and further information?
Facebook GNH

Google Insight: a tool similar to Facebook GNH, to show where (please keep in consideration people mainly use native language to search online) and what people are searching for when it comes to Happiness  http://www.google.com/insights/search/#cat=19&q=happiness&date=1%2F2010%2012m&cmpt=q

This is chapter Five of “Happiness Formulas. How to assess our subjective well-being? How to live joyfully in the 21st century?”. This free eBook can be downloaded from
or from the home-page of the Institute of subjective well-being: science of happiness .

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