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The civilized man has built a coach, but has lost the use of his feet

Accordingly, the relevant question to ask about the assumptions of a theory is not whether they are descriptively realistic, for they never are, but whether they are sufficiently good approximations for the purpose in hand.

La destrucción creativa es el proceso de transformación que acompaña a las innovación. La innovación es la introducción de una nueva función de producción