Friedman issues euro warning

US - Top US economist Milton Friedman believes Europe was wrong to introduce the single European currency and predicts it will lead to a raft of economic problems for the region.

"I've always believed the euro to be a mistake and believe that the member states will face a great many problems in future with their different economic policies," the Nobel prize winner told a German newspaper.

Despite his scepticism about the likely success of the currency, Mr Friedman said the currency was underval