The idea saw increased discussion in the leadup to the 2014 Scottish independence referendum. In May 2014, the UK Government said in an analysis paper that there was a "UK dividend" worth £1,400 to each person in Scotland.[9] This estimate was mainly based upon there being higher public spending in Scotland.[9] The Scottish Government said that Scots would be £1,000 better off by 2030 if Scotland became an independent state, due to greater productivity and higher tax revenues.[9] The difference between the two figures was mainly due to differing forecasts of revenue from North Sea oil.[10]