Centre for Cities says economic gap with London widening 27 January 2014 Last updated at 02:11 The economic gap between London and the rest of the UK is widening because other cities are "punching below their weight," according to research. London has created 10 times more private sector jobs than any other city since 2010, analysis by the Centre for Cities found. The think tank is calling for more power to be devolved to the regions. Its research found almost a third of people aged between 22 and 30 who moved cities headed for London. Job creation London appears to "suck talent from the rest of the country," the report says, with many young people never returning to their home towns. Edinburgh and Birmingham were the next best performing cities in terms of private sector job creation. Paul Swinney, senior economist at the Centre for Cities, said the performance of London was good for the UK economy. He said: "It's one of the best performing cities in the world and from a national perspective we need to continue supporting the growth of London. The bigger issue is the underperformance of our next largest cities, such as Sheffield and Manchester. They're very much punching below their weight in terms of their contribution to the national economy. Researchers found "welcome signs of growth" in Edinburgh, Birmingham and Liverpool where "significant numbers" of private sector jobs had helped to offset some of the impact of public sector job losses. The areas of Greater Manchester and Greater Leeds both contributed more to the UK's economy than the whole of Wales, Centre for Cities said, while Bristol had lost 13,900 private sector jobs in the period, more than any other city.