The central thesis may be open to debate, yet this is a welcome enterprise.

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Mr. Hanke's central thesis is that Africa lacks private property rights, is awash with kleptocracy and hence lacks investment opportunities.

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Innovation is the engine of the global economy he says, which is the central thesis of his book, by the way.

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The nearest the book comes to a central thesis is charting the creeping disenchantment with modernity that characterised the second half of the 20th century.

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The book is rushed and lumpy, reminiscent of lectures by a man who skims over the central thesis to concentrate on his pet interests.

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Anyhow, the central thesis of your article is shaky at best.

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Mr Legrain cites innovative, entrepreneurial and peripatetic Swedes and Indians to drive home his central thesis that both rich and emerging countries stand to gain from the latter's increasing economic dynamism.

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Many interesting observations follow on from this central thesis, notably that the ability of the educational system to supply workers educated to meet the needs of the economy, and yet keep pushing it forward, increased economic equality.

FORBES

The central thesis that Mr Karabel draws from this history is that the universities have always determined their merit criteria according to the admissions outcomes that would suit their institutional interests, rather than the other way around.

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Partly, perhaps, because of the third popular criticism of our bubble thesis: that it is too risky, both economically and politically, for a central bank to prick a bubble by raising interest rates.

ECONOMIST: Trapped by the bubble