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| подготовить научную статью (John von Neumann noticed that Walras's general equilibrium theory and Walras's law, which led to systems of simultaneous linear equations, could produce the absurd result that profit could be maximized by producing and selling a negative quantity of a product. He replaced the equations by inequalities, introduced dynamic equilibria, among other things, and eventually produced the paper. Alex_Odeychuk) | |||