Worldwide industrial robots installed and American sneaker revenue, on the same upward path for nearly two decades. The shoe is, in many cases, made by the robot. The robot is not, however, wearing the shoe. The graph mostly handles itself.
Industrial robot installations grew from about a quarter of a million units shipped per year in 2005 to over half a million by 2023, with most growth in Chinese factories. US athletic-footwear revenue grew steadily as athleisure became default daily wear and Nike's direct-to-consumer pivot lifted average prices. Both lines partially converge: a rising share of athletic-footwear manufacturing is robotised, and the same global manufacturing investment that grew sneaker volumes also grew robot installations. Different operators, same factory floor.
Sometimes correlation is the inside of the same supply chain. The shoe and the welder share a building.
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Want to learn more about why correlations like “Industrial robots installed worldwide” vs “U.S. sneaker/athletic footwear market revenue” don't prove causation? Read our guide to statistical thinking.
