In a series of recent writings, John Roemer has made a provocative claim: exploitation and class are merely second-order concepts within Marxian theory, because both phenomena derive directly from differential ownership of productive assets ; indeed, exploitation remains a consistent index of economic injustice only if a “property relations” conception of exploitation replaces the common “labor-value” view. In sum, property relations, not the labor exchange, the labor proces, labor values, or even capitalist accumlation should bethecentral concern of Marxian theory.

Introduction Marxism is a set of ideas from which sprang particular approaches to economics, sociology, anthropology, political theory, literature, art, ...

John Roemer's comment succinctly summarizes the logical structure of his own theory of capitalist exploitation, but misunderstands the main points of our critique. He reduces his argument to two propositions. The first is an “empirical proposition”about the “root causes of exploitation”: X + Y → Z, where X is the existence of differential ownership of means of production, Y is coercion in the labor process, and Z is the capitalist class structure and exploitation. The second is the strictly theoretical proposition (...) X + not- Y -” Z, the truth of which he demonstrates, given most of the assumptions of a Walrasian economic model. He concludes that these two propositions, taken together, demonstrate the primacy of DOPA in explaining capitalist class relations. This much is true – subject to the various limitations we have indicated in our article – but only within the restricted confines of a Walrasian framework. This purely theoretical conclusion has no force as an empirical conclusion: this is the point at which Roemer's interpretation goes awry. For obviously, DOPA is a crucial element of empirical reality. But because Roemer's Walrasian framework precludes other equally crucial elements of empirical reality, an irreducible distance remains therein between the theoretical and the empirical. (shrink)