Nobel Prize winning economist Paul Krugman says Greece will have to leave the euro.

Speaking to BBC HARDtalk's Sarah Montague he says there was no alternative but whoever makes the decision for Greece to go would simultaneously be ending their own political career.

You can watch the full interview on BBC World News on Thursday 30 May at 20.30 and on Friday 31st May at 03:30, 08:30, 15:30 GMT and on the BBC News Channel on Friday 1st June at 00:30 BST and 04:30 BST.

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