What factors have accounted for the rapid growth of world trade over the past 40 years?

) What factors have accounted for the rapid growth of world trade over the past 40 years?

b) What effect would an appreciation of the U.S dollar, relative to the Chinese Yuan, have on both our exports to China and our imports from China.

c) Do an online search and find the estimated dollar value of goods and services Imported into the U.S. and Exported from the U.S for 2014.