3. Suppose members of a 3 person community would each benefit
from basic medical research that found a cure for a deadly disease.
Assume that such research is collectively (i.e. non-rivally)
consumed, and that "units of research" can be measured by the
number of "full-time equivalent" scientists, R, engaged in medical
research. Assume further that each person's marginal valuation or
willingness to pay for medical research is given by the following
demand functions, where P is the marginal
valuation, or...