Copper prices have surged this year by 25 percent, according to new data.
Copper has a broad level of demand, with plenty of industries relying on this commodity.
Fisher Funds expert Sam Dickie explains how copper can be a barometer of the human economy.
LISTEN ABOVE

Enda Brady: UK correspondent speaks ahead of Trump appearance at NATO summit
03:54

Hamish McKay: The Country spokesperson on the impacts of the rain in Kaikōura
03:25

The Huddle: Should we be worried about China?
09:29