Editing World Values Survey (section)

===Happiness and life satisfaction===
The WVS has shown that from 1981 to 2007 happiness rose in 45 of the 52 countries for which long-term data are available.<ref name=wvs-old2>{{cite web|url=http://www.worldvaluessurvey.org/wvs/articles/folder_published/article_base_122 |title=Is Denmark the happiest country in the world? |publisher=WVS |author=WVSA |access-date=9 September 2015 |url-status=dead |archive-url=https://web.archive.org/web/20131019111440/http://www.worldvaluessurvey.org/wvs/articles/folder_published/article_base_122 |archive-date=October 19, 2013 }}</ref> Since 1981, economic development, democratization, and rising social tolerance have increased the extent to which people perceive that they have free choice, which in turn has led to higher levels of happiness around the world, which supports the [[human development theory]].<ref name=wvs-old2/>