By divergence or convergence I don't mean in terms of rules, they clearly have been trying to converge in those terms. But was that fast enough to translate into economic convergence? I mean, have the (converging) rules managed to produce a convergent economy or not?
I suspect there will be different answers depending on the indicator chosen and/or the counterfactual scenario, but I still think this question would be informative even just to what as what those metrics are (on which there is convergence on which there isn't).
For example, an article in the Economist earlier this year chose to emphasize the divergence in terms of creditor/debtor position, more technically in terms of the net international investment:
After a bit more search, it seems there are a lot of papers on economic convergence and divergence in the EU. Some are pretty extensive (understatement). Apparently it's a topic that never gets old. So, to better fit this in the SE format: if you had to give an elevator talk/pitch to someone about this EU economic convergence/divergence issue (in terms of indicators/outcome, not policies), what are the main aspects to touch?