Using a series of colored blocks, Russia Today's progressive talk show host Thom Hartmann explained this week how just 147 corporations run the entire global economy.

Spurred on by a recent study titled "The capitalist network runs the world," The Big Picture host showed how there are harmful clusters of power that have become pervasive throughout the system that runs the global economy.

"These 147 companies around the world have basically organized themselves into this cancer, and they're basically running the world," he explained. "There sucking up 40 percent of all the resources in the world."

WATCH: Video from Russia Today, which was broadcast on October 24, 2011.