4) Why has the value of ivory threatened the extinction of the elephant, whereas the
value of beef has enhanced the survival of the cow?
a.Cows are a common resource, whereas elephants are owned by governments.
b.Elephants are larger than cows, requiring more economic resources.
c.Elephants live in Africa, where economic resources are scarce.
d.Elephants are a common resource, whereas cows are privately owned.
5) Which of the following statements is not correct?
a.Monopolistic competition is different from monopoly because monopolistic
competition is characterized by free entry, whereas monopoly is characterized by
barriers to entry.
b.Both monopolistic competition and oligopoly fall in between the more extreme
market structures of competition and monopoly.
c.Monopolistic competition is different from oligopoly because each seller in
monopolistic competition is small relative to the market, whereas each seller can affect
the actions of other sellers in an oligopoly.
d.Both monopolistic competition and perfect competition are characterized by product
differentiation.
6) Central planning refers to
a.markets guiding economic activity. Today many countries that had this system have
abandoned it.
b.markets guiding economic activity. Today many countries that did not have this
system have implemented it.
c.government guiding economic activity. Today many countries that had this system
have abandoned it.
d.government guiding economic activity. Today many countries that did not have this
system have implemented it.
7) The example of segregated streetcars in the southern United States in the early
twentieth century is one example of
a.racial discrimination by firms, despite government efforts to halt it.
b.racial discrimination by firms with no government action either to halt it or to support
it.
c.government-mandated racial discrimination.
d.a failure to find any discrimination where most would expect to find it.