Why does the prohibition of selling kidneys in the United States lead to economic inefficiency? Kidney Transplants and the One Lesson of Business (Part a) Why does the prohibition of selling kidneys in the United States lead to economic inefficiency? It prevents kidneys from being allocated according to their highest valued use, from individuals who value them less to those who desperately need them. It decreases the medical risks associated with kidney transplant procedures. It increases the availability of kidneys, making them less valuable. It ensures that all individuals have equal access to kidney transplants, regardless of economic status