Cognitive skill decline with age is not as strong as previous studies suggest. Skills decline in old age only for those with below-average skill usage - use it or lose it.
Eric Hanushek, @kinnelavinia.bsky.social, Frauke Witthoeft, @woessmann.bsky.social
https://cepr.org/voxeu/columns/use-it-or-lose-it-how-cognitive-skills-change-age
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