The intersection of economics and religion.
I was thinking about this topic this morning. I think that capitalism may be the largest religion in the United States. I know that surveys would say that Christianity is the biggest, but if you went on to ask some specific individual questions the conclusions may be different. Questions such as "How much time every day do you spend thinking about God?" vs "How much time every day do you spend thinking about money?" Also a lot of people in the United States have faith in the power of free markets that verges on a religious faith.
Modern Christianity has largely strayed from it's original vision as a religion that was founded on some specific principles with regards to money. I think to the Jesus that we hear about in the Bible the idea of a wealthy Christian would be a contradiction in terms. And yet a great number of the wealthy in this country would identify themselves as being Christian. So should they be considered Christians or capitalists?