Who originated the term "deadweight loss" and when? I am looking for the first use of the term "deadweight loss."  Any suggestions either as to who it was who first used it or how to search for it?
So far as the "when" is concerned, Google Ngram can be helpful for this sort of question.  It suggests (see here) that use of the term was nil or close to nil until 1960, since when its use has grown fairly steadily.