Societies worse off 'when they have God on their side'

This falls in the category of « duh » studies, like « study finds that drinking water is good for you » or « study finds that swallowing razor blades is bad for you » or « study finds that rabbits are smaller than whales » but I’m sure that some study somewhere has proven that « sometimes, stating the obvious can be useful » (even if the chain of causality can be debated).

If you care enough to bother, you can read about it in The Times (of London)