Economics Editor Richard Edgar is in Edinburgh for the Bank of England Governor's speech on how a newly-independent Scotland could still retain sterling:
Key message from Carney: "a durable, successful currency union requires some ceding of national sovereignty."
Tough decisions on giving up sovereignty to be made both by Scots ... and rest of UK.
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In the unexpected announcement on Monday, Mr Key said it was the "right time" to leave politics.
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According to local reports, the man was found by friends in their accommodation in Val Thorens resort in the Alps on Sunday morning.