David Warsh, "The Enormous Black Box" http://www.economicprincipals.com/issues/2009.12.13/841.html (2009)
“Thanks to the work of John Maynard Keynes and of Milton Friedman, we now have a better understanding of how governments can (at least in principle) reduce the severity of major economic downturns. Keynesian economics taught us that government spending can raise GDP and reduce unemployment.”
"Economic Conditions and U.S. National Security in the 1930s and Today" (2009).
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American economist 1939–2019Related quotes

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Source: "Mongolia, US Sign Developmental Aid Agreement" in Voice of America https://www.voanews.com/a/a-13-2007-10-23-voa2/405655.html (1 November 2009)
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"John Maynard Keynes: Where’s The Genius?! (Part 2) http://www.economicpolicyjournal.com/2013/08/john-maynard-keynes-wheres-genius-part-2.html Economic Policy Journal, August 23, 2013.
2010s, 2013