The cost of production differs largely in the various countries. also the relative parity of the moneys of the different countries from which imports are brought to the United States. In the year 1947. decorated household china was shipped to us by 32 countries. of which four accounted for 80 percent. These were Japan. Germany. France. and China. Two were European countries and two Asiatic. represented by distinct standards of living and unequal competitive levels. yet the rate of duty was the same for all. A single rate of duty in such Instances frustrates the very function of a protective tariff. There can be no individual rate of duty equally applicable to all countries exporting their goods to America.