the more educated are prone to irrational political opinions
I’m quite sure that this is wrong actually—that more educated folks still have better opinions about policy, but only weakly so. Bryan Caplan has pointed this out in his work on the irrationality of the common voter. It becomes right though when you control for rational judgment in private, non-political contexts—education greatly improves that and you would expect it to have the same effect in political judgments. But it doesn’t, really.
average incomes are less likely to express political opinions to send signals.
It’s often pointed out that lower-income folks tend to be politically apathetic, so to the extent that they do have opinions on policy you would expect these to be less influenced by signaling dynamics. But signaling is not the only source of error (involving both random noise and persistent bias) in political judgments!
I’m quite sure that this is wrong actually—that more educated folks still have better opinions about policy, but only weakly so. Bryan Caplan has pointed this out in his work on the irrationality of the common voter. It becomes right though when you control for rational judgment in private, non-political contexts—education greatly improves that and you would expect it to have the same effect in political judgments. But it doesn’t, really.
It’s often pointed out that lower-income folks tend to be politically apathetic, so to the extent that they do have opinions on policy you would expect these to be less influenced by signaling dynamics. But signaling is not the only source of error (involving both random noise and persistent bias) in political judgments!
In many cases yes I agree.
He argues that very few people, educated or not, actually have any strong factual or logical basis for their opinions.
But I think the more important point is that educated people do have some specific failure modes. From other sources
Hate to admit they are wrong
Over-complicate things
Tend to privilege theory over observation and simple heuristics.
Focus on being right versus winning.
Deny the existence of things they don’t understand.
Fail to communicate with people of average intelligence / typical mind fallacy.