(...) pure competition can only describe what things would be like if the world contained zombie-like consumers with homogeneous tastes, atomistically structured firms identical in every important respect, with no locational advantages, no ad­vertising, no entrepreneurship, and no rivalry whatever. Surely this is the major flaw and absurdity inherent in the purely com­petitive perspective.

Dominick T. Armentano "A Critique of Neoclassical and Austrian Monopoly Theory"