Steve Keen is a professor in economics and finance at the University of Western Sydney. He classes himself as a post-Keynesian, criticizing both modern neoclassical economics and Marxian economics as inconsistent, unscientific and empirically unsupported. The major influences on Keen's thinking about economics include John Maynard Keynes, Hyman Minsky, Piero Sraffa, Joseph Alois Schumpeter, and François Quesnay. His recent work mostly concentrates on mathematical modeling and simulation of financial instability.