Here's Jared Bernstein
Here's Peter Dorman
And here's a paper from two years ago by Harry Holzer I always like to show people about how there is something to it, but the strength of the findings are very sensitive to how you operationalize the problem.
That is basically my view too.
I'm having a bit of an arm wrestle over this with my NBER chapter co-author (yes that's still going on... but they need to be in by the end of the month. Normal publication delays plus a delay obtaining the data for the editor's chapter and of course we all will wait for him). My co-author is convinced we should pull out the section on SBTC and engineering earnings. I'm trying to convince him that just because it doesn't explain all of what's going on with inequality doesn't mean it not an important factor in engineering earnings - particularly during certain periods. Anyway, not a big deal - it's a sprawling chapter with a lot of stuff anway, but I'm gonna try to keep in as much of that as I can.
Speaking of sprawling... the Hayek paper is in finally. 13,000 words. Thanks for everyone who looked at chunks of it (I didn't subject anyone to the whole thing... just like the CIA, I compartmentalize my dirty work). Seriously, though - I hope it will be a valuable contribution to the literature. I think I have some pretty good things to say, particularly in how we should take the growing empirical literature.