Steve Keen is an Australian economist and author. He considers himself a post-Keynesian, criticizing neoclassical economics as inconsistent, unscientific, and empirically unsupported. The major influences on Keen’s thinking about economics include John Maynard Keynes, Karl Marx, Hyman Minsky, Piero Sraffa, Joseph Alois Schumpeter, and François Quesnay. His recent work mostly concentrates on mathematical modeling and simulation of financial instability.

Most of Steve Keen’s recent work focuses on modeling Hyman Minsky’s financial instability hypothesis and Irving Fisher’s debt deflation.

Keen’s full-range critique of neoclassical economics is contained in his book, Debunking Economics.