20. US citizens have better nutrition, better healthcare, and a longer life expectancy than citizens of Ghana. Which of the
following conclusions can be drawn from this statement?
Average income in the US is higher than the average income in Ghana.
The US has a higher standard of living than Ghana.
Productivity in the US is higher than productivity in Ghana.
All of the above are correct.
21. In a particular country in 1998, the average worker needed to work 25 hours to produce 40 units of output. In that
same country in 2008, the average worker needed to work 40 hours to produce 68 units of output. In that country, the
productivity of the average worker
decreased by 1.7 percent between 1998 and 2008.
remained unchanged between 1998 and 2008.
increased by 4.75 percent between 1998 and 2008.
increased by 6.25 percent between 1998 and 2008.
22. In a particular country in 2000, the average worker needed to work 40 hours to produce 55 units of output. In that
same country in 2008, the average worker needed to work 30 hours to produce 45 units of output. In that country, the
productivity of the average worker
decreased by about 6 percent between 2000 and 2008.
remained unchanged between 2000 and 2008.
increased by about 9 percent between 2000 and 2008.
increased by about 18 percent between 2000 and 2008.
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
decreased between 1998 and 2008, so we would expect the standard of living to have decreased accordingly.