This might only applys in France in the eu each state implements directives from the EU as it sees fit there can be wide discrepancies

For example the way the Spanish implemented TUPE (how employees are treated in take over) is basically a big f$%k you to the EU as it makes no attempt to implement even anything close to the spirit of the directive.

I suspect that Germany might be stricter on the university Degree.

Also not all Eu states implemented it Uk Eire and Denmark did not.

To note: The spain blue card info says: Proof of adequate training and, if applicable, professional qualifications to practise the profession.

http://extranjeros.empleo.gob.es/es/InformacionInteres/Folle...