studies of the London School of Economics

I was really bored today, thus I decided to google a wee bit.
suddenly I read: "According to studies of the London School of Economics, the happiest people in the world live in Bangladesh,.."
I was really stunned=/, so I determined to reread these lines. maybe, I got them wrong, but hell no, after rereading it I realized that I got it right.
However, I still couldn't believe these fucking lines, I mean Bangladesh is one of the poorest countries in the world, and it's still fazed by misgovernment and natural disaster.
...okay I gonna stop right know, because I want to search after the documentation film of this study.^^ have a nice day.

PS. I'm gonna post an article after watching the documentation.