经济学家修正自己的观点很常见。并且这本书本身就是教科书而不是前瞻性的研究报告，结合当时的国际实际形势客观断言也并不是愚蠢的表现。不过他对奥派的偏见倒是老顽固的表现。
"Every economy has its contradictions.… What counts is results, and there can be no doubt that the Soviet planning system has been a powerful engine for economic growth." — Paul Samuelson, Economics, 1985 edition
--注意这个has been。
"Contrary to what many skeptics had earlier believed, the Soviet economy is proof that … a socialist command economy can function and even thrive." — Paul Samuelson, Economics, 1989 edition
--虽然语气软了，但考虑到苏联经济历史上的成就，这一评语还是中肯的。
"Two-thirds of a century after [The Road to Serfdom] got written, hindsight confirms how inaccurate its innuendo about the future turned out to be." — Paul Samuelson, 2009
--这个有点胡扯了，老顽固了。
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