The EUD has published a report on how the EU´s principle of subsidiarity has been implemented.
In "The EU's principle of subsidiarity - an empty promise", Anne-Marie Pålsson, former member of the Swedish Parliament and Adjunct Professor in Economics at Lund University argues that:
"With the Lisbon Treaty, clear borders would be drawn for the competences of the European Union. The democratic deficit would be eliminated and the national parliaments would be involved in the work of the European Union. All this would be accomplished through changes in the subsidiarity control.
But the competences of the EU are so wide, its targets so ambitious and the criterions when a proposal is in breach of the principle are so imprecisely formulated that this control lacks all prerequisites to stop the transfer of new competences to the EU.
It appears unlikely that the purpose of the new Treaty really was to give the national parliaments a more profiled role because the regulations for the scrutiny