The Successful Societies Scale: The First Broad Based Statistical Tool for Comparing Prosperous Nation’s Socioeconomic Conditions Reveals How Dysfunctional Psychosociological Conditions Underlie the Origin and Evolution of High Levels of Popular Religious
http://www.epjournal.net/filestore/EP07398441_c.pdf A tough read as it is a research paper but it suports that the more secular a society is the more successful it is.
