Of all the commodities traded in global markets, none is more economically informative than copper. The metal is so closely tied to industrial activity that it has earned the nickname “Dr. Copper,” or the metal with a PhD in economics, because its price reliably reflects the health of the global industrial economy. Copper is used in construction, in electrical wiring, in electronics, in transportation, and in renewable energy infrastructure, which means its demand is a direct proxy for economic activity across the sectors that drive global growth. For investors who want to read the economy through commodity markets, copper is…
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