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econ.TH2026
First They Came for the Others: A Theory of Divide-and-Conquer
Yeon-Koo Che, Jinyuqi Huang, Wooyoung Lim
Divide-and-conquer tactics often succeed not through mechanical coordination failures, but through inferential friction regarding an aggressor's underlying intent. When an attacker…
econ.TH2026
Learning Against Nature: Minimax Regret and the Price of Robustness
Yeon-Koo Che, Longjian Li, Tianling Luo
We study how a decision-maker (DM) learns from data of unknown quality to form robust, ''general-purpose'' posterior beliefs. We develop a framework for robust learning and belief…