Developed economies' comparative advantage is in knowledge-intensive activities, because they have so much skilled labour.

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Thinking differently starts by recognizing that the US economy actually advances by becoming more knowledge-intensive.

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Mr Dunlap himself admits that his approach will not work for many high-tech or knowledge-intensive firms.

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For the present the rise of knowledge-intensive global industries favours centres rich in infrastructure and specialised skills.

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Employer demand is shifting to jobs that are analytical and knowledge-intensive, which favors those with the right talents.

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One is external to the state: the global economy has become a much more knowledge-intensive place, with even the oil business turning into a high-tech industry, so Texas needs more and better universities and schools.

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America's export boom is likely to be led by firms that are already global in scale and by sectors in which America has a clear competitive advantage: sophisticated, knowledge-intensive capital goods like microprocessors, and high-end services like engineering, oil-production services and even (witness KPF) architecture.

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Mobile-developer boot camps, which are popping up around the country, can fill in the knowledge gap with intensive do-it-yourself training.

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