Adaptive Treatment Assignment in Experiments for Policy Choice
面向政策选择的实验自适应处理分配AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要讨论多波次实验的处理分配及最终政策选择,研究设计直接服务于干预比较与政策决策,因此归入因果推断。
面向政策选择的实验自适应处理分配AI 解读 ↓
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Standard experimental designs are geared toward point estimation and hypothesis testing, while bandit algorithms are geared toward in‐sample outcomes. Here, we instead consider treatment assignment in an experiment with several waves for choosing the best among a set of possible policies (treatments) at the end of the experiment. We propose a computationally tractable assignment algorithm that we call “exploration sampling,” where assignment probabilities in each wave are an increasing concave function of the posterior probabilities that each treatment is optimal. We prove an asymptotic optimality result for this algorithm and demonstrate improvements in welfare in calibrated simulations over both non‐adaptive designs and bandit algorithms. An application to selecting between six different recruitment strategies for an agricultural extension service in India demonstrates practical feasibility.