140 Ten Principles of Economics
23. In a particular country in 1998, the average worker needed to work 40 hours to produce 100 units
of output. In that same country in 2008, the average worker needed to work 36 hours to produce
72 units of output. In that country, the productivity of the average worker
a. decreased between 1998 and 2008, so we would expect the standard of living to have
decreased accordingly.
b. increased between 1998 and 2008, so we would expect the standard of living to have increased
accordingly.
c. decreased between 1998 and 2008, so we would expect inflation to have decreased
accordingly.
d. increased between 1998 and 2008, so we would expect inflation to have increased accordingly.
24. In a particular country in 1999, the average worker had to work 20 hours to produce 55 units of
output. In that same country in 2009, the average worker needed to work 28 hours to produce 77
units of output. In that country, the productivity of the average worker
a. increased by 2 percent between 1999 and 2009.
b. increased by 5 percent between 1999 and 2009.
c. remained unchanged between 1999 and 2009.
d. decreased by 3 percent between 1999 and 2009.