London, Birmingham and Aberdeen now cost more to live in

UK cities move up the ranks on worldwide cost of living list as pound rallies against the dollar

The pound's strengthening against the dollar has increased the cost of living in London, Birmingham and Aberdeen, which have moved up the ranks of the world's most expensive cities.

Hong Kong is the world's most expensive city for expatriates, followed by Tokyo, Zurich, Singapore and Seoul, according to a cost of living survey, which ranks 209 cities on the cost of a basket of more than 200 goods and services such as coffee, bread, milk, cinema and rent.