Fisher Clark Harrod-Domar Lewis Rostow Demo. Popn Pyramids Price Movts Privatisation Causes of Growth Causes of Infl.
Copper is an example of a primary commodity.
It is a naturally occurring raw material that is traded in world markets. The export revenue from copper depends upon firstly the price and secondly the quantity sold. Hence the price that copper earns on the commodity market is very important. The demand for the metal still remains high however new technologies such as fibre optics are being discovered that can substitute for copper. The downward trend in commodity prices is due to changes in the long-term conditions of supply and demand.