I use the term “broad tent Post Keynesianism” for Post Keynesianism in the broadest sense, incorporating the different sub-schools, as described by Marc Lavoie in his talk below (from 50.37) and this fascinating paper here, with some minor differences: for example, I do not regard MMT as an Institutionalist tradition but within the broad Post Keynesian tradition (I discuss the history of MMT here).
On the extreme right I have included a column with some neoclassical schools for clarity (such as Neoclassical synthesis Keynesianism and Post Walrasianism).
I have also chosen to include Abba P. Lerner in that column (which some might find controversial).
The schools or approaches I have left out include:
(1) Ecological Economics;It appears to me that some of these groups are not really coherent economic schools at all (e.g., behavioural economics), and some are still heavily influenced by neoclassical economics.
(3) Behavioural Economics;
(4) Evolutionary Economics;
(5) Herbert Simon and the behaviouralist school;
(6) Development Structuralists (Latin American School);
(7) Participatory economics;
(8) left libertarian economics such as syndicalism.
(9) the 19th century British Banking School.
Others I have left out simply because there is not enough room for them on the diagram!
One interesting but neglected historical school was the 19th century Birmingham School, a proto-Keynesian group of economists.
“Neoclassical Synthesis Keynesianism, New Keynesianism and Post Keynesianism: A Review,” July 7, 2010.
“Non-Neoclassical Institutionalism: A List of Economists,” March 13, 2014.
“The History of Modern Monetary Theory,” January 3, 2012.
“Axel Leijonhufvud and the Post-Walrasians,” May 13, 2011.
“Post Keynesian Economists: A List,” March 1, 2012.
Davidson, P. 2003–2004. “Setting the Record Straight on ‘A History of Post Keynesian Economics,’” Journal of Post Keynesian Economics 26.2 245–272.
Davidson, P. 2005. “Responses to Lavoie, King, and Dow on what Post Keynesianism is and who is a Post Keynesian,” Journal of Post Keynesian Economics 27.3: 393–408.
Davidson, P. 2005. “The Post Keynesian School,” in B. Snowdon and H. R. Vane (eds.), Modern Macroeconomics: Its Origins, Development and Current State. Edward Elgar, Cheltenham. 451–473.
Dunn, S. 2000. “Wither Post Keynesianism?,” Journal of Post Keynesian Economics 21.3: 343-366.
Kaboub, F. 2001. “Conversation with Stephen P. Dunn,” Oeconomicus 5 (Fall)
Lavoie, Marc. 2011. “History and Methods of Post-Keynesian Economics,” in Eckhard Hein and Engelbert Stockhammer (eds.), A Modern Guide to Keynesian Macroeconomics and Economic Policies. Edward Elgar, Cheltenham.
Lavoie, Marc. 2014. “To which of the Five Streams of Post-Keynesianism does John King belong?”