I agree that in Amazon's business it's hard or impossible to establish monopoly pricing practices. That does not mean there's no such thing as a non-government

I agree that in Amazon's business it's hard or impossible to establish monopoly pricing practices. That does not mean there's no such thing as a non-government enforced monopoly. http://en.wikipedia.org/wiki/Natural_monopoly http://en.wikipedia.org/wiki/Natural_monopoly