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econ.GN2026
Technology Shocks, Relative Performance Measures, and Outcomes: Evidence from Classical Chess
Dan Ben-Moshe, David Genesove
In the fall of 2020, neural-network methods produced a large improvement in chess engines that became freely and widely available. By the end of 2021, the monthly draw rate in clas…
econ.EM2026
Unbiased Estimation of Central Moments in Unbalanced Two- and Three-Level Models
Dan Ben-Moshe, David Genesove
This paper derives closed-form unbiased estimators of central moments in multilevel random-effects models with unbalanced group sizes. In a two-level model, we provide unbiased est…