DEFAULT

Greece, which has received nearly 240 billion euros in two bailouts from the European Union and International Monetary Fund since 2010, is set to miss a 1.6 billion euro debt repayment to the IMF which falls due on Tuesday.

If that happens, IMF Managing Director Christine Lagarde will immediately report to the global lender's board at close of business, Washington time, that Greece is "in arrears" - the official euphemism for default.

It will be the first time in the history of the IMF that an advanced economy has defaulted on a loan from the world's financial backstop, putting Athens, which has seen its economy contract by more than 25 percent since 2009, in the same bracket as Zimbabwe, Sudan and Cuba.

Already the imposition of capital controls to prevent the crippled banking system from collapsing have given Greeks a bitter foretaste of the economic plunge that could follow exit from the euro.

Withdrawal limits of 60 euros a day have been fixed for cash machines and there have been long queues at petrol stations and in supermarkets as worried shoppers have stocked up on essentials like pasta and rice.

There were no immediate signs of serious shortages but if the banks remain closed, cash flow problems which have already been reported by some firms, could worsen.

"So far there are no problems with suppliers, but if the banks are still closed next week there will be a bit of a problem if they demand purely cash payments," said Charisis Golas, owner of a small meat and dairy shop in Athens.