Jim Poterba writes:

"Incidentally, someone recently forwarded your intro to graduate school
lecture to me, with the discussion of "brother so-and-so." I really enjoyed
reading it. To keep the historical record straight, it was STAN FISCHER who
somehow influenced my impressionable jargon in this direction. Stan
referred to "Brother Hausman" or "Brother Dornbusch." I didn't realize that
I had gone so far in his direction!"