Some lawyers say that would mean a legal commitment to join the single currency.
Their instincts, particularly on joining the single currency, have sometimes been correct.
For this reason, joining the single currency should go smoothly.
No wonder that those countries are not rushing to join the single currency.
There is also an increase in the number of countries joining the common currency.
But worst of all, they joined the European single currency.
This chance is now already small enough, particularly in those countries which will not be permitted to join the single currency.
I welcome the fact that 11 countries are set to join the new currency which will encompass a population of over 290 million people.
Anyone who has joined the common currency cannot get out.
What they probably need most is for the United Kingdom to join the single currency.