12. How does technoloyg affect transportation which is a important factor for international trad?
Revision as of 08:19, 26 March 2005 by Lianzhuang Qu (talk | contribs)
According to a survey of IMF, the cost of transportation dropped dramtically from 1920 to 1990, as you can see in the table.
Year Sea (a) Air (b) Phone Call (c) Computers (d) 1920 95 - - - 1930 60 0.68 245 - 1940 63 0.46 189 - 1950 34 0.30 53 - 1960 27 0.24 46 12,500 1970 27 0.16 32 1,947 1980 24 0.10 5 362 1990 29 0.11 3 100