Plasma derived medical products help save and improve the lives many people--for example, those with hemophilia. There is a shortage of these products. Yet, there has been strong opposition to payment for donating human plasma leading to regulations that forbid payment in England and most European countries. Such opposition is based on ignorance of current medical science, outdated notions about the "crowding out" phenomenon, and protected values. The latter are values that people are not willing to give up no matter what the cost of doing so may be.