Lloyd Cohen, a George Mason lawprof who has been working on this subject for a long time, has a new proposal. Here's an excerpt from the introduction:

After spending sixteen years urging legal reform that would permit compensation for organ donation in order to increase the supply of transplant organs I have decided to reverse course. I will now try to increase the supply of organs by decreasing the supply of organs, that is, by urging you to commit to not donating your organs unless you are compensated.

Why this radical change in direction? Because, my efforts to change the law and increase the supply of organs have proven fruitless, and there is really very little that I or anyone else can add to the argument for employing a market incentive to increase organ donation. . . .