Paul Krugman @paulkrugman
NBER yellowjackets were the intellectual medium of exchange in multiple subfields. Elitist in that only NBER associates could put them out. But that was a fairly large group, and arguably more open than the old journal system. — PolitiTweet.org
Adam Tooze @adam_tooze
@paulkrugman Series of working papers were the key, were they not. One read things that appeared in certain key series.
