The Commission said the proposed deal would not cause competition concerns in European Economic Area (EEA) markets.

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Ministers promised to look into the issue of applications from outside the European Economic Area (EEA) following a key report by Sir John Tooke.

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However, once qualified, they can continue to receive it if, in future years, they move abroad to another European Economic Area (EEA) country or Switzerland.

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In particular, the Commission points to the continued taxation of the UK profits of subsidiaries established in the EU or in member states of the European Economic Area (EEA).

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The investigation will examine payments made by people from outside the European Economic Area (EEA) - the EU's 27-member states as well as Norway, Liechtenstein and Iceland - who use their credit and debit cards when inside the area.

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