If a consumer allocates income between goods A and B, total utility is maximized
when:
a. the marginal utility of A = the marginal utility of B.
b. the marginal utility of A = the marginal utility of B = 0.
c. the price of A = price of B.
d. marginal utility of A / price of A = marginal utility of B / price of B = 0.
e. marginal utility of A / price of A = marginal utility of B / price of B.
If the equilibrium price of natural gas is $4 per thousand cubic feet and a price ceiling is
imposed at $3 per thousand cubic feet, the result will be:
a. a surplus of natural gas.
b. a shortage of natural gas.
c. an accumulation of inventories of unsold gas.
d. None of these.
The neighborhood ice cream shop finds that when it charges $3 per ice cream cone, its
total revenues are $90,000. It has total variable costs of $30,000 and total fixed costs of
$40,000. From this we can infer the:
a. shop should be moved because the rent is too high.
b. price is less than average total cost.
c. economic profits are $20,000.
d. shop will be closed in the long run.