RT Journal Article SR Electronic T1 Monopsony in the Labor Market JF Journal of Human Resources JO J Hum Resour FD University of Wisconsin Press SP S1 OP S10 DO 10.3368/jhr.monopsony.special-issue-2022-introduction VO 57 IS S A1 Ashenfelter, Orley A1 Card, David A1 Farber, Henry A1 Ransom, Michael R. YR 2022 UL http://jhr.uwpress.org/content/57/S/S1.abstract AB