Economists and investors have long turned to copper as a reliable economic indicator: High prices meant the economy was humming, and low prices meant it wasn’t. That’s in part because copper is useful for so many economic activities. In fact, copper was considered such a good signal that investors gave it a nickname—Dr. Copper. But now, as high demand and tariffs affect copper prices, is the commodity’s relationship with the economy becoming blurry? Host Alex Ossola discusses this with Dec Mullarkey, head of investment strategy and asset allocation at SLC Management. This is part two of our four-part series on alternative economic indicators. Sign up for the WSJ's free What's News newsletter. Learn more about your ad choices. Visit megaphone.fm/adchoices

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