From LearnLiberty.org, a project of the Institute for Humane Studies:
Prof. James Stacey Taylor argues that willing rational adults should be allowed to buy and sell kidneys. Instead of providing complex theoretical arguments, one can look at the human stories to see why markets in kidneys should be allowed. Peter Randall, for instance, became famous in 2003 for offering his kidney for sale on eBay. He was offering his kidney for sale to raise money for therapy for his six-year-old daughter, Alice, who was suffering from cerebral palsy.