Assume an economy is trying to allocate 40 units of a non- renewable resource across two time periods. The following information is provided:

MWP = 16 - 0.5Q

MC = $1 per unit

(A).Given the discount rate is 10%, what are the efficient level of prices and quantities at each period? [5 points]

(B).Calculate the marginal user cost for both periods. [5 points]

(C).Diagrammatically show the solution to this problem. [Hint: draw the marginal net benefits curve for each period on the same diagram] [5 points]

(D).What is the approximate NPV of a stream of money($3,000, $ 5,000, $ 6,000, $ 10,000 & $ 12,000) paid in the next five years when the interest rate is 6%? Show your work.[5 points]