TY - JOUR T1 - Understanding choice, pressure and markets in kidneys JF - Journal of Medical Ethics JO - J Med Ethics SP - 277 LP - 278 DO - 10.1136/medethics-2019-105781 VL - 46 IS - 4 AU - Luke Semrau Y1 - 2020/04/01 UR - http://jme.bmj.com/content/46/4/277.abstract N2 - Here, I briefly respond to a recent paper by Julian Koplin, in which he criticises my earlier work in this journal. I show that Koplin has misunderstood the distinction I have made between pressure to vend and pressure with the option to vend. I also show that his pessimism about the market regulations I favour is unwarranted. ER -