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At the centre of the debate (IMO) about whether Universities are echo chambers, a hide-out for Marxist collaborators, etc, is whether they are ideologically homogenous - at least compared to other workplaces. My hunch was not and so I looked at it. 
I used @BESResearch , which only has education and sector of work (?). So I looked at those which, as I explain in the blog, I don't think is unreasonable. I took liberal-authoritarian values and left-right scale as ideology measures and the standard deviation for homogeneity.
First, with no surprise to anyone, those with postgraduate degrees are more left and liberal than others. But the *variation* is not much different and if anything, those who have postgrads are more ideologically varied than those with GCSEs or no quals.
In terms of the public sector, some suggestion that the public sector is more homogenous than private or third in terms of left-right, but not liberal-authoritarian. So no clear evidence either way.
Expanding the educational categories actually provides a clearer picture. The distributions are less homogenous the further up the educational ladder. Postgraduates are more varied than those without qualifications, those with GCSEs, etc, but this starts to level off at A-levels.
I know this isn't a complete analysis, but to me seems to be important to point out that even if postgrads, undergrads and academic staff are more left-liberal *on average*, that doesn't mean they are *homogenous*. If anything, they're more ideologically varied.
So why the suggestion they are? Taking those pointing this out on good faith, I'd guess: 1) a focus on social sciences and humanities, which may be different and 2) the normative position of Universities.
Builds on this one from @chrishanretty a few years back: https://medium.com/@chrishanretty/is-the-left-over-represented-within-academia-90b1cbe00e8a
