Macroeconomics 8th Edition by David Colander

Exercise 6

Kennesaw University Professor Frank A. Adams III and Auburn University Professors A. H. Barnett and David L. Kaserman recently estimated the effect of legalizing the sale of cadaverous organs, which currently are in shortage at zero price. What are the effects of the following two possibilities on the equilibrium price and quantity of transplanted organs if their sale were to be legalized?
Demonstrate your answers graphically.
a.Many of those currently willing to donate the organs of a deceased relative at zero price are offended that organs can be bought and sold.
b.People are willing to provide significantly more organs.