Copper is among the most practical commodities in the world, as the industrial sector relies heavily on the material for a number of uses. Not only does it have wide applications in the industrial world, but the economic space as well. With the nickname “Dr. Copper,” the reddish-brown metal is often used as a proxy for the global economy as a whole, precisely because of the demand created by the industrial world [for more copper news and analysis subscribe to our free newsletter ]. See the full story here → Related Posts: Copper Drops Into Danger Zone Industrial Metals Lose Their Luster The Best and Worst Industrial Metals ETFs of 2012 3 Commodities For A Housing Recovery Physical Copper ETFs? Not So Fast