Abstract
This paper shows why attempts to test the neoclassical aggregate marginal productivity theory of distribution are inherently flawed. The use of constant-price value data and an underlying accounting identity mean that the close correspondence often found between the “output elasticities” of a putative aggregate production function and the relevant factor shares is a mere statistical artefact. Likewise, the results of estimating neoclassical labor demand functions must, for the same reason, always give spurious results.
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