It all started with John Maynard Keynes.
The economics world of theories continues to get more confusing every day, so the Washington Post has created this wonderful graphic of the history of Modern Monetary Theory.
Many economic theories today have been tangents of ideas from the great British economist John Maynard Keynes. He argued that recessions can be prevented through government intervention. His theories are the basis for a plethora of actions taken by our government still today.