[The U.S. economy in a world context] The U.S. Central Intelligence Agency's World Factbook (www.cia.gov/ library/publications/the-world-factbook/index.html) offers many comparative tables of world data. Go to this site and find the following:

a. The countries with the highest and lowest real GDPs

b. The countries with the highest and lowest per capita real GDPs, adjusted for purchasing power

c. The countries with the most equal and least equal income distributions

d. The countries with the highest and lowest real GDP growth rates

e. The rank of the United States in these categories