Just read it, Keith. The number of unanswerable questions it raises - particularly around the style, number and content of the household surveys, data collection methods, questionnaire bias, etc. (I used to do some work for the BBC Audience Research Department and its analyses of survey accuracy and bias) - is legion. I personally can't count it as credible evidence on its own, I'm afraid.

Define 'happiness' and how we measure it - and that's just for starters! The survey mentions that religion acts as a "buffer" against life's disappointments. Although I'm not religious, I think that's somewhat demeaning to religion.

I think we'll have to beg to differ.