D. a decrease in the supply for good X.
Suppose a consumer has determined that her reservation price, R, is $75. The expected
benefit of an additional search at this reservation price is $25. Based on this information
we can conclude that:
A. search costs are $25 per search.
B. this consumer will reject any price above $25.
C. this consumer will accept any price below $75.
D. search costs are $25 per search, and this consumer will accept any price below $75.
The external marginal cost of producing coal is MCexternal = 6Q while the internal
marginal cost is MCinternal = 4Q. The inverse demand for coal is given by P = 120 – 2Q.
How much output would a monopoly produce?
A. 10
B. 20
C. 15
D. It cannot be determined because of incomplete information.