Most have cut back on investment, creating a vicious circle that reduces growth further.

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This will produce more prosperity in both countries, yielding a virtuous circle of more growth, more interdependence, and more balance, driven in good measure by the growth of the Chinese middle class.

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Growth leads to a virtuous circle.

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Migration data for the most recent one-year period available, July 2010 t0 July 2011, show the Great Recession has shaken the rankings up quite a bit within the circle of fast-growth regions.

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Escaping this vicious circle of poverty and discontent requires sustained growth.

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Growth has been driven by the firm's "My Circle" calling plan, which allows free calling to any 10 numbers.

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It does address the root problem, defaulting mortgages, and Mr Bernanke has long worried that bad debt would fuel a vicious circle of crippled lenders, constricting credit, weakening growth and more defaults.

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One way of squaring the circle would be to measure economic output (and therefore growth) in terms other than simple GDP.

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He argued that having a growth plan would help get the economy moving again and "stop the vicious circle on the deficit" but said it wouldn't "secure our economic future" on its own and tough decisions would still be needed on tax and spending.

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In sub-Saharan Africa, where much of the population lives on the edge of subsistence, poverty and slow economic growth, or outright decline, increased the likelihood of future state collapse, thereby trapping the countries in a vicious circle of poverty and political instability.

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