But it was realised that the full benefits of a single market could only be reaped with the introduction of a single currency for the participating countries.
Ach tugadh faoi deara nach bhféadfaí teacht i dtír ar na buntáistí ar fada bhain leis an margadh aonair ach amháin trí airgeadra aonair a thabhairt isteach do na tíortha a bhí páirteach ann.