https://www.eurofound.europa.eu/publications/report/2017/eu-member-states/statutory-minimum-wages-in-the-eu-2017

Explanations for internal EU immigration/emigration at a glance.

Like anything else in life: follow the money.
“Migration and poverty are undoubtedly the two most painful consequences experienced by a society in protracted crisis conditions,”

The number of Greeks aged 15-64 who left the country since 2008 is 427,000. In 2013 alone, 100,000 people migrated, tripling the yearly average until then. The phenomenon continued with unabated intensity in 2014 and further exacerbated in the first half of 2015.

The Greek emigration wave for work abroad is still in progress and does not appear to be slowing down as unemployment remains at 25%.


Change in statutory minimum wages in real terms between 1 January 2010 and 1 January 2017
Greece -24.3%
Bulgaria +86%

and in their madness the EU expects all these disparate economies to work under a single currency. So far the sole winner is Germany.
Thank God we kept independence with the pound.