Monogamy Leads To More Prosperous Societies, Say Researchers "It would be easier for men in the top 1% to support 3 wives, at least financially, than for a man in the lowest quartile of earners to support one. ... Yet in much of the world, particularly the wealthier parts, monogamy - albeit with cheating around the edges - has flourished. Why?" The Wall Street Journal 01/29/12