I would look at background more than university. For instance, Thatcher's background has nothing in common with Cameron's or Johnson's.
Oxford is top of the league and attracts brilliant, ambitious people so it's not surprising that it is over-represented at the top as well, though it's interesting that it dominates so absolutely. It may partly be self-reinforcing because I suspect that ambitious young people who want a career in politics think "right, first step is Oxford PPE".
Oxford is top of the league and attracts brilliant, ambitious people so it's not surprising that it is over-represented at the top as well, though it's interesting that it dominates so absolutely. It may partly be self-reinforcing because I suspect that ambitious young people who want a career in politics think "right, first step is Oxford PPE".