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© Reuters/STRINGERBuildings are seen at Sowwah Square on Marayah Island in Abu Dhabi's new central business district May 7, 2013. Last week Abu Dhabi outlined plans for a full-service financial zone on the island near Abu Dhabi's downtown area; the zone will have its own administration, court system and tax incentives to lure banks and other firms from around the world. The announcement caused consternation among thousands of bankers, fund managers and other finance professionals in Dubai, some of whom may in future have to commute along the 130-kilometre (80-mile) highway linking the desert cities - or even move permanently to Abu Dhabi. Picture taken May 7, 2013. REUTERS/Ben Job (UNITED ARAB EMIRATES - Tags: BUSINESS POLITICS)