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A "subjective" theory of value grounded on concepts such as "utility" is still a theory of value, just as a theory of subjective morality is still a theory of morality. > Now some of the people who made this argument were right-wingers, so if you think that only "ought" questions matter, the fact that people with the wrong notion of "ought" made a contribution proves that the whole thing is morally bankrupt. I don't think that's the case; there is a distinct break in value theory after Marx, which totally pulls him out of the classical tradition, because he has a "truly social" (as Patrick Murray puts it) theory of value - it is the recognition of its historical specificity. And while it's true that not only neoclassicals objected to the labour theory of value, the current status quo was create through ideological objections veiled as a "revolution". Nevertheless, it is a mistake to view Marx and post-Marx value theory (and here I must emphasize not only value theory but the theory of the value-form) as merely a way to explain prices rather than to explain social dynamics. The subjective theory of value stops before that point, and by limiting its scope to analysis of capital's shadow forms it relies either on ahistorical thought experiments (Robinson Crusoe?) or atomistic views of society. By limiting its scope the theory becomes almost tautological and contentless. The Sraffian objection to the labour theory of value, which is that values are redundant, not only fetishises its claimed ability to explain price, but misses the whole point of the theory. As such, some philosophers who hold to the theory even go as far as to say that it does not hold on the level of the individual commodity, but only on aliquots representative of the lot. It is as if these commentators stopped reading Capital on section 2 of chapter 1. My point about history is this: economics, in claiming to be scientific, should therefore be held to the same standards as any other science, to explain not only the what but also the why, and for its explanation to be full and complete regardless of time. Its object is intrinsically historical in nature, but either by the "limiting of scope" I talked about before or even projecting the laws of specific social formations on all of history, the task is relegated to economic historians. |
Value theory was entombed by Marx' followers. Marx offered a theory that was a) a positive theory on how the economy functioned, b) a normative theory on why capitalism was immoral, and c) a mechanical explanation on why capitalism was doomed. In terms of a and c it has failed. I don't even think this is a damning criticism of Marx -- Smith and Ricardo were wrong about plenty as well. The neoclassicals moved on from Ricardo, but Marxists have refused to move on and instead of enveloped "the theory of value" in a cloud of words to insulate Marx from criticism. Mysteriously, while Smith and Ricardo can be criticized, critics of Marx are always "missing the whole point of the theory".
Economics is not all of social science. The core of economics is the study of markets, though it touches on history, or psychology, or sociology. Markets were pretty peripheral for most of human history, and historical, or psychological, or sociological explanations are more important. Maybe you can explain everything that has ever happened for all of human history, but I sure can't.