In the Land of Purity, there is only one form of pollution, called "gunk." Table 12-18 shows
possible combinations of economic output and reduction of gunk, depending on what kinds
of environmental regulations are chosen.
Combos Eco Output Gunk Cleaned Up
J 800 10%
K 500 30%
L 600 40%
M 400 40%
N 100 90%
a. Sketch a graph of a production possibility frontier with environmental quality on the
horizontal axis, measured by the percentage reduction of gunk, and with the quantity of
economic output on the vertical axis.
b. Which choices display productive efficiency? How can you tell?
c. Which choices show allocative efficiency? How can you tell?
d. In the choice between K and L, can you say which one is better and why?
e. In the choice between K and N, can you say which one is better, and why?
f. If you had to guess, which choice would you think is more likely to represent a
command-and-control environmental policy and which choice is more likely to represent
a market-oriented environmental policy, choice L or M? Why?