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             Samuelson was opposed to the world of unregulated free market capitalism. He felt that if we were to look at the behavior of financial markets, we would find that instead of tending toward equilibrium, prices continue to fluctuate relative to the expectations of buyers and sellers. There are prolonged periods when prices are moving away from any theoretical equilibrium. Even if they eventually show a tendency to return, the equilibrium is not the same as it would have been without the intervening period. Yet the concept of equilibrium endures. It is easy to see why: without it, economics could not say how prices are determined (Soros 45).
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