This Policy Brief provides a concise overview of the most important innovations introduced by the Treaty of Lisbon (ToL), comparing it at the same time to the defunct Constitutional Treaty (CT). The author, CEPS Fellow Sebastian Kurpas, concludes by considering whether the Lisbon Treaty will...

Since years the European Union struggles with its structural and constitutional self-determination in search of a sustainable balance between con-federal and federal options, between inter-governmentalism and supranationalism. This Article understands the Treaty of Lisbon as one step in a long...

This contribution looks into the relationship between national parliaments and the EU’s trade policy since the entry into force of the Treaty of Lisbon. The October 2016 saga of a sub-State parliament in the Belgian region of Wallonia rejecting to authorize the signature of the Comprehensive...

By the end of 2009, Ireland, the Czech Republic, and Poland finally ratified the Treaty of Lisbon. This marked the end of a turbulent period that had seen the Laeken Declaration, a controversial and rejected proposal for a Constitution for Europe (in 2005), and the hard fight over the compromise...

The aim of this paper is to explore the balance between market freedoms and national regulatory autonomy following the entry into force of the Treaty of Lisbon, particularly in the light of the rephrased national identity guarantee under Article 4(2) TEU.The paper will discuss whether the newly...

The Treaty of Lisbon installed an Early Warning System (EWS) for the principle of subsidiarity. The EWS enables the chambers of national parliaments to challenge EU legislation within the field of shared competencies by sending so called "reasoned opinions" to the European Legislators. A major...