What does Greece's experience tell us about austerity?
As people in the US and Europe are learning, when your government decides it has to get its finances in order, the results can be quite painful.
Yet austerity can be an uphill - and even self-defeating - task, as Greece has discovered.
Justin Rowlatt, of the BBC World Service's Business Daily, explains why.
You can find out more on our special report: The global economy - making it clear