Milton Friedman once joked that if you put the government in charge of the Sahara Desert in five years there would be a shortage of sand. He could have been talking about Venezuela and its oil wealth. But it is no joke.

On Monday Caracas missed interest payments due on two government bonds and one bond issued by the state-owned oil monopoly known by its Spanish initials PdVSA. Venezuela owed creditors $280 million, which it couldn’t manage even after a 30-day grace period.

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