Why don’t I like it? “Source: International Monetary Fund” !! Fantastic. That’s like quoting a scientific breakthrough and saying Source: MIT. Which of the many artifacts they’ve recently released did it come from? I scrolled through the first three or four pages of IMF pubs, checked all of the titles that I thought may have contained the figure or similar data but no dice.
Is it too much to ask for a standard citation including the publication title and date, too?
I went looking because another comment suggested that maybe Brexit made the Eurozone numbers look particularly bad. But I don’t think that’s the case: the WSJ article particularly calls out UK citizens as similarly being worse off.
But after all that looking I couldn’t ultimately tell you whether or not the Brexit hypothesis is correct.