"The purpose of this final contribution is to offer a broad schematic overview of ‘mechanisms' that can be used to strengthen the social security protection of persons moving in and out of the EU. Seven mechanisms have been selected for discussion: national unilateral standards, EU unilateral standards, bilateral agreements, EU coordination of bilateral agreements, EU third country agreements, multilateral co-operation and global standards. The existence of this plethora of mechanisms, each with its own merits and shortcomings, casts a shadow over the possibility of a uniform EU regime for external social security relations. Any attempt to introduce such an approach can immediately be contradicted by alternative approaches and mechanisms which can be used both by the EU and by the individual Member States. It is suggested that more coherence in external EU social security coordination can perhaps be found in a conceptual way, by layering the seven mechanisms in a logical manner."

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