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On the TSSI and the exploitation theory of profit

In a recent article in this journal, Kliman (2001) has argued that only a temporal single system interpretation (TSSI) of Marxian value theory preserves the fundamental Marxian theorem (FMT) and hence finds the origin of profit solely in exploitation. This paper first outlines the TSSI in order to emphasise the particular and controversial definition of value on which it depends. Kliman's logical demonstration of the FMT is then shown to fail on exactly the same grounds for which he indicts rival interpretations.