Plan :
Introduction 1. Legal aspects 1.1. The right of secession from the EMU and EU 1.2. The Lisbon Treaty exit clause 1.3. The right of expulsion from the EU or EMU 2. The Greek case 2.1. Greek market and figures 2.2. Greek market and figures 2.3. Domino effect 2.4. Austerity measures 3. Implications of a Member state withdrawal or expulsion 4. Conclusion