Of course, the heading is not a coincidence. Although currently I deal mainly with macroeconomics and monetary economics (I guess I could be labelled a ‘post Keynesian‘), Karl Marx is still my chief theoretical reference point. His critique of political economy is the necessary starting point for developing a critical economic theory – where the criticism is both of the mainstream view and of its specific subject, i.e. capitalism. Among my other references, I would mention Rosa Luxemburg, Michal Kalecki, Piero Sraffa, Hyman Minsky, Richard Goodwin, Augusto Graziani, and Wynne Godley. These are the giants whose shoulders I try to stand on to observe the horizon.