Abstract
Japan and USA are the major copper consuming countries, and the refined copper consumption in both countries amounted for 33 % of the free world consumption. In order to clarify the copper demand trends in Japan and USA, copper consumption data from 1960 to 1989 are analyzed by using the following intensity of use technique;
IU=C/GDP=(Q/GDP)×(C/Q)=PCI×MCP(+Embodied copper consumption/GDP) where IU : Intensity of use measures copper consumed per real GDP
C : Copper contained final product
PCI : Product Composition of Income is the proportion of consumer's total income that is spent on this final product
MCP : Material Composition of Product measures the amount of metal used to make one unit of a product The results indicate the different trends of IU, PCI, MCP and embodied copper consumption between Japan and USA, which reflects different economic and trade policy in both countries.
