1) Assume that Zimbabwe and Portugal can switch between producing toothbrushes and
producing hairbrushes at a constant rate.
Which of the following combinations of toothbrushes and hairbrushes could Portugal
produce in 30 minutes?
a.1 toothbrush and 4 hairbrushes
b.4 toothbrushes and 2 hairbrushes
c.5 toothbrushes and 6 hairbrushes
d.6 toothbrushes and 5 hairbrushes
2) Certain factors that are probably important in determining wages are nevertheless
difficult to measure. Consequently, labor economists find those factors difficult to
incorporate into their studies of labor markets and wages. Those factors include
a.effort and natural ability.
b.natural ability and years of experience.
c.years of experience and job characteristics.
d.race and job characteristics.
3) In which of the following markets are strategic interactions among firms most likely
to occur?
a.markets to which patent and copyright laws apply
b.the market for piano lessons
c.the market for tennis balls
d.the market for corn
4) Figure 9-6
The figure illustrates the market for roses in a country.