Anna Jonsson Cornell is Professor of Comparative Constitutional Law at the Faculty of Law at Uppsala University.
Marco Goldoni is a Senior Lecturer at the Law School, University of Glasgow, UK.

Much has changed in European constitutional law after the Lisbon Treaty, not least the efforts to increase democratic legitimacy by engaging national legislatures and introducing a stricter subsidiary review process, namely the Early Warning Mechanism (EWM).
This collection looks at how national parliaments have adapted to their new roles and looks at how the new system has impacted on relations between the EU legislative bodies and national parliaments. A team of experts from across Europe explore the effect of the EWM on the national constitutional orders; analyse the regional impact of EWM and evaluate the new system of scrutiny.

1. Introduction
Anna Jonsson Cornell and Marco Goldoni

Part I: Subsidiarity Review-Goals Achieved and Future Challenges
2. Is the Early Warning Mechanism a Legal or a Political Procedure? Three Questions and a Typology
Ian Cooper
3. Reconstructing the EWM?
Jörgen Hettne
4. Mapping out the Procedural Requirements for the Early Warning Mechanism
Anna Wetter
5. Interparliamentary Cooperation between National Parliaments
Bruno Dias Pinheiro

Part II: Regional Parliaments
6. Regional Parliaments and the Early Warning System: An Assessment and Some Suggestions for Reform
Diane Fromage
7. A New Player in the 'Multi-Level Parliamentary Field'. Cooperation and Communication of Regional Parliaments in the Post-Lisbon Scenario
Karolina Boronska-Hryniewiecka
8. Italian Regional Councils and the Positive Externalities of the Early Warning Mechanism for National
Constitutional Law
Cristina Fasone
9. Belgian Parliaments and the Early Warning System
Werner Vandenbruwaene and Patricia Popelier

Part III: The Early Warning Mechanism in National Constitutional Orders
10. Similar but Different-Comparing the Scrutiny of the Principle of Subsidiarity within the EWM in Denmark, Finland and Sweden
Anna Jonsson Cornell
11. The Scrutiny of the Principle of Subsidiarity in the Procedures and Reasoned Opinions of the Italian Chamber and Senate
Nicola Lupo
12. Speaking with One Voice? The French Parliament's Use of the EWM
Angela Tacea
13. Parliamentary Scrutiny of EU Affairs by the UK Parliament: The Primacy of Ministerial Accountability
Adam Cygan
14. Able and Willing? Early Warning System and Political Dialogue in the Bundestag and the Nationalrat
Katrin Auel
15. Like Two Peas in a Pod? The Functioning of the Early Warning Mechanism in the Czech Republic and Poland
Katarzyna Granat
16. The Trajectory of the Early Warning Mechanism
Marco Goldoni and Anna Jonsson Cornell