A judicial clerkship is a resume booster for any aspiring legal academic, but some judges are far more likely than others to launch former clerks into law professor gigs.

That’s the takeaway from a new draft paper examining so-called “academic feeder judges,” that breaks down which federal and state court judges have the most former clerks currently on law school faculties. The study is a twist on the much-examined “feeder judge” phenomenon, which centers on the federal lower court judges who send the most clerks on to Supreme Court justices.