For the purposes of this question, assume that allowing payment for kidney donations would cause us to spend another $3.5 billion on kidney transplants. (This is slightly above the estimate provided in the text.) Also assume that permitting such payments saves the lives of 5,000 patients who would otherwise die waiting for a kidney? How much must we value a human life for it to make economic sense to permit payments for kidneys? How much is that number reduced if each of the 5,000 also ends up spending 36 months less on dialysis? Show all of your calculations.