At the end of the third  quarter of 2010, copper prices were above $3 per pound, three times the price at  the start of the year. The $3 price was caused by overly depressed prices from  the worldwide recession, anticipation of a recovery in 2011, and huge Chinese  purchases. While these were the reasons for the 2010 surge in copper prices,  causes in the future could differ because many factors weigh on copper  prices.
Price Trends:  Long, Short and Medium Term
Copper prices are volatile.  The trend of prices from 1970 to 2010 is generally down. The six-month trend is  up, but the three- to five-year trend is erratic. The 2009 rise from $1 to $3  was preceded by a 2008 plunge from $4. Such upward and downward moves, by 30  percent or more within a two-year period, are not uncommon with copper  prices.
Demand and  Supply Factors
Commodity prices are  principally determined by supply and demand. Too much supply of copper brings  down prices while heavy demand brings up prices. Supply comes from inventories  and production from copper mines. Demand comes from users and uses. The more  volume and types of use for copper, the bigger the demand. Higher the demand  combined with lower supply - the higher the price.
Users and  Producers
Chile produces nearly  one-third of the copper produced in the world. The United States, Canada and the  former USSR combined, account for about half of world output. The largest  users are the United States and China, followed by the former Soviet Union,  Japan, the United Kingdom and Germany. Labor negotiations, strikes and other  political and economic conditions in user and producer countries are big  influences on copper prices.
Uses of  Copper
Copper has uses in housing  and automotive applications, but the  biggest market by far is the electrical industry where, because of its  conductivity, it is used as wiring and as parts in telecommunications and  electronics. Because it is corrosion-resistant, it is used in plumbing,  radiators, cooking systems and solar heating. Copper is strong, ductile, and  malleable, and is used in producing brass and bronze, and can be alloyed with  silver and nickel. It is also used in jewelry and coins.
Economic  Recession and Growth
Because of copper's  industrial use, it is consumed mostly by developed countries. Thus, the demand  for copper is affected by the general state of the world economy, and by the  particular state of the automotive, housing and electrical industries. With  economic slowdowns and recessions, prices soften as demand declines. Prices go  up with strong economies and increased use.
Other  Determinants of Price
Seasonal factors sometimes  affect copper prices, as do speculators and the status of the dollar. Prices  tend to be up as the housing and automotive industries gear up for their spring  and summer peak production, then soften in late summer and fall. Speculators  have little permanent effect on prices, but can play roles in transitory moves.  Because prices of copper are dollar-denominated, a weak dollar is generally good  for copper prices.
 
