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Now Reading: Reinforcement generates systematic differences without heterogeneity

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Reinforcement generates systematic differences without heterogeneity

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U.S.//Discover the latest updates from across the United States, including politics, culture, economy, and trending stories. Stay informed on the key events shaping the nation and the topics everyone’s talking about.
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Reinforcement generates systematic differences without heterogeneity

IO_AdminUncategorizedYesterday5 Views

Proceedings of the National Academy of Sciences, Volume 122, Issue 23, June 2025.
SignificanceIn analyses of longitudinal records, it is standard practice to attribute systematic differences across units to heterogeneity in unobserved characteristics. In this paper, we show that such systematic differences might instead be the result …
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