Bankers rule the world. A new Swiss Federal Institute of Technology study says so. Written by Stefania Vitali, James Glattfelder and Stefano Battiston, it's titled "The network of global corporate control," saying:

"We find that transnational corporations from a giant bow-tie structure and that a large portion of control flows to a small tightly-knit core of financial institutions. This core can be seen as an economic 'super-entity' that raises new important issues both for researches and policy makers."

The study says 147 powerful companies control an inordinate amount of economic activity - about 40%. Among the top 50, 45 are financial firms. They include Barclays PLC (called most influential), JPMorgan Chase, UBS, and other familiar and less known names.