[joe_the_user]

I think the problem of the sale of blood isn't people not getting paid fairly for their blood in the purely economic sense. There's no reason to think that the "full worth" of blood is that high since producing blood is pretty common "skill".

The problem is abetting those desperate to sell their blood and body parts are going to be abetting the downward spiral such people tend to be on. The most blood donors are homeless and drug addicts. Donating blood doesn't make someone more able to find a job, housing etc because it's a literal drain on their vitality.

[savanaly]

That is a good point and I am somewhat concerned about that. If the decision were put to me I would personally have to think long and hard about whether it's actually good for society to let people sell their body parts. But it's still helpful to have a clear economic picture of what is going to be affecting the market price of these things and that's fun to think about so I try to focus on that.