Report comes weeks after Ucas head warns gap between rich and poor 'will be eclipsed' by gender gap within just 10 years
Stark differences emerge across all four UK nations, too, as Government insists England's system is 'fair and sustainable'
Revelations come as IFS warns government spending on pupils will fall 7 per cent by 2020
Even though we make up only 7 per cent of the population, the influence of that 7 per cent stretches from Westminster (half of the current cabinet) to our judiciary (74 per cent of top judges) and beyond
But those who gain a degree from a top institution are still likely to have the highest earnings, it suggests
'We find it unacceptable that there are so many re-marks and regrading of exams – both at GCSE and at A-level'