Economics and Philosophy of Economics.

Traditionally, Economic topics, e. g. Distributive Justice, Private Property, by Philosophers are usually subsumed under Morality or Political Philosophy.  Marx diverges from that tradition by conceiving Economics to be the foundation of Philosophy, on the basis of his thesis that Economic behavior, not some Epistemological datum, for example, is the foundation of Experience.  Still, insofar as he presupposes some variety of Dialectics, and some Moral principle according to which exploitation is Evil, that grounding is not completely original.  Furthermore, the foundational status of Economics is irrelevant to one of his masterworks, Capital.  So, despite the Philosophical attention to Economics, still lacking is an endeavor that can be called Philosophy of Economics, the main aim of which is to define the best Economic system, i. e. is contrasted with Economics just as Political Philosophy is with Political Science or Political Theory.