Earlier quoted context omitted.
But GP didn’t say that, he said it’ll be bad for Bulgaria and he’s objectively wrong, due to all the reasons outlined by others.
You simply do not know if he is objectively wrong. On the basis of 25 years of Euro, what we have observed is that in the eurozone, capital follows productivity, and countries tend to specialise in line with what their factor endowment and national inclination will let them. The Euro is usually "sold" as a miracle solution when it has only really been successful for countries that had a very export oriented string in…
This is objectively wrong, since Bulgaria currently had 0 control over its currency, where joining the eurozone, they’ll have a vote at the table