Ken Rogoff
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Davos 2011: Economic analysis from Professor Ken Rogoff

The Swiss alpine resort of Davos is playing host to hundreds of business leaders and heads of state for the annual World Economic Forum.

Ken Rogoff is Professor of Economics at Harvard University and one of the leading economists at the forum.

As the fate of the eurozone looms over the meeting, he says the debt crisis needs decisive action as "there will be defaults".

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