"Boo Radley is a hero. Bob Ewell is a racist and a rapist [...] And yet Gladwell thinks the reason that Atticus has a different "standard" for each man is that Radley has more money!" — Isaac Chotiner [TNR]
So after the last discussion on this, I went on Wikipedia to refresh my memory. Apparently, there has never been a long dissertation on Mockingbird and there have only been a handful of short academic papers.
I really hope this Gladwell thing actually gets people to analyze it and maybe do some serious work on the novel which has never been done before.