A strong international currency also requires a central bank willing to use its balance sheet to support that objective.

For example, most offer international currency accounts for those who travel regularly and have homes overseas.

Of course, buying abroad isn't all about a microscopic analysis of international currency movements and potential profit margins.

The company specialises in allowing private investors to trade on the international currency markets, mainly via derivatives.

This would see bank deposits converted into a new drachma, which would likely collapse in value on international currency markets.