Social theories are also social facts. Whatever explanatory value the “Marxist” or “conservative” models may have, they surely cannot be regarded as … - Kenneth Arrow

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Social theories are also social facts. Whatever explanatory value the “Marxist” or “conservative” models may have, they surely cannot be regarded as established with any degree of firmness. Yet excessive confidence in one or the other may have serious consequences. If “conservatives” believe too strongly that any move to socialism undermines democracy, then they may indeed act in accordance with the “Marxist” model, and vice versa. (Robert Merton long ago alerted us to “self-confirming” and “self-denying” social theories; here we have a pair of rival theories which are “other-confirming.”)