Second, the widening gap between high earners and middle to low, if left unchecked, is a main determinant of increased inequality. On 9 December 2014, the same day the FT reported that pay of FTSE 100 CEOs jumped by 50 per cent over the previous year, mainly because of increases in bonuses and stock options,20 a new OECD working paper reported that in the UK the richest 10 per cent now earn 9.5 times more than the incomes of the bottom 10 per cent, compared to 7 times more in the 1980s.