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In page European Union:
"The free movement of services and of establishment allows self-employed persons to move between member states to provide services on a temporary or permanent basis. While services account for 60–70% of GDP, legislation in the area is not as developed as in other areas. This lacuna has been addressed by the recently passed Directive on services in the internal market which aims to liberalise the cross border provision of services.[6] According to the Treaty the provision of services is a residual freedom that only applies if no other freedom is being exercised.
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