To ensure the acceptability of money, a government must
a. back it with gold or silver.
b. create enough of it so people can purchase all the goods they want and need.
c. limit its quantity relative to output.
d. prevent the public from holding it for extended periods.
e. ensure its supply keeps pace with inflation.
A key characteristic of oligopoly is
a. a single firm producing a product with no close substitutes.
b. complete absence of entry barriers.
c. a demand curve much less elastic for price increases than for price decreases.
d. the tendency to spend less on product differentiation and advertising than a perfectly
competitive firm.
e. actual and perceived interdependence among firms.
The following questions are based on the following graph, showing short-run supply
and demand curves for a perfectly competitive market. The initial supply curve is