0 Economakis, George Milios, John 2004 Rethinking Marxism 16 215--224 The aim of this paper is to critically present Rosa Luxemburg's critique of Marx's reproduction schemes in Volume 2 of Capital , as a point of departure for a critique of the main postulate of (Marxist) underconsumption theories. These theories postulate that a <em>third party</em> of consumers, in addition to capitalists and workers, is necessary in order to act as potential <em>absorbers</em> of surplus capitalist production and so to safeguard the ability of the capitalist economy to reproduce itself on an expanding scale.