Andrew Clark and Orsolya Lelkes in their paper entitled 'Deliver us from evil: religion as insurance' are basically telling us that believers are happier. Their paper - one of dozens presented at last weeks Royal Economic Society Annual Conference [RES Home] [RES Conference]
Judging by the fact that it seems to concentrate on European data sets - I've only read the abstract - and highlights Catholic and Protestant denominations I'm guessing they refer only to Christianity - hence today's relevance.
...focuses on the insurance role of religion in buffering the well‐being impact of stressful life events, and the ensuing economic and social implications... ...we show that the religious enjoy higher levels of life satisfaction, and that religion does insure against some adverse life events.
Anyway, happy or not they've got some good tunes! (and they say it's the Devil that always has them...he may have: THIS is why.) I wrote here - the 4th comment on this post on Baldinio's blog yesterday - and now I can't stop singing! Oh happy day...