Here's a great podcast on "The Middleman Economy". It expands on your points and brings up a few more use cases for value-added middlemen that you haven't liste

Here's a great podcast on "The Middleman Economy". It expands on your points and brings up a few more use cases for value-added middlemen that you haven't listed here. http://www.econtalk.org/archives/2016/03/marina_krakovsk.html http://www.econtalk.org/archives/2016/03/marina_krakovsk.htm...