THE worst global economic storm since the 1930s may be beginning to clear, but another cloud already looms on the financial horizon: massive public debt. Across the rich world governments are borrowing vast amounts as the recession reduces tax revenue and spending mounts--on bail-outs, unemployment benefits and stimulus plans. New figures from economists at the IMF suggest that the public debt of the ten leading rich countries will rise from 78% of GDP in 2007 to 114% by 2014. These governments will then owe around $50,000 for every one of their citizens.

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