What is the name of this reference style? In which other fields have you seen it?
It replaces author names (in the list of references) with a long underscore when it's the same authors as in the previous item. Also, numbers of the last page are abbreviated if there is too little change. With the latter I am not sure it's part of the reference style, or just a convention.
I found this reference in Economics, namely here: https://www.jstor.org/stable/pdf/2118200.pdf