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econ.EM2025
Leave No One Undermined: Policy Targeting with Regret Aversion
Toru Kitagawa, Sokbae Lee, Chen Qiu
While the importance of personalized policymaking is widely recognized, fully personalized implementation remains rare in practice, often due to legal, fairness or cost concerns. W…
econ.EM2023
Treatment Choice, Mean Square Regret and Partial Identification
Toru Kitagawa, Sokbae Lee, Chen Qiu
We consider a decision maker who faces a binary treatment choice when their welfare is only partially identified from data. We contribute to the literature by anchoring our finite-…