But why exactly is America so rich? Karl Smith ventures an explanation.

但为什么恰好是美国富强呢？

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So, apart from adapting first Karl Marx and now Adam Smith, what have they been writing?

那么，除了先是改编马克思，现在又是亚当·斯密，他们都在写些什么？

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Adam Smith, Karl Marx, Alfred Marshall, John Maynard Keynes, and a handful of others have shaped the world of economics and influenced our lives.

亚当·斯密，马克思，阿尔弗雷德·马歇尔，凯恩斯，以及少数其他人都改变了整个世界的经济，并影响了我们的生活。

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Karl Smith has helpfully reproduced and extended the chart to the present day.

FORBES: The Niskanen Rule and the Fed's Tight Money

Karl Smith likes to ask why the US government is still collecting taxes when interest rates are so low that we could be financing the entire federal budget with borrowing.

FORBES: Why Borrow Now, Tax Later Is A Bad Idea

Luckily, as it turned out, at least when it came to Internet policy, Magaziner had far more in common with Adam Smith than Karl Marx.

FORBES: 15 Years On, President Clinton's 5 Principles for Internet Policy Remain the Perfect Paradigm