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PERSUASION BIAS IN SCIENCE: CAN ECONOMICS HELP?

机译:科学中的说服偏见:经济学可以帮助吗?

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摘要

We investigate the impact of conflicts of interests on randomised controlled trials in a game-theoretic framework. A researcher seeks to persuade an evaluator that the causal effect of a treatment outweighs its cost, to justify acceptance. The researcher can use private information to manipulate the experiment in three alternative ways: (i) sampling subjects based on their treatment effect, (ii) assigning subjects to treatment based on their baseline outcome, or (iii) selectively reporting experimental outcomes. The resulting biases have different welfare implications: for sufficiently high acceptance cost, in our binary illustration the evaluator loses in cases (i) and (iii) but benefits in case (ii).
机译:我们在博弈论框架下研究利益冲突对随机对照试验的影响。研究人员试图说服一名评估者,认为治疗的因果效应大于其成本,以证明其可接受性。研究人员可以使用私人信息以三种替代方式来操纵实验:(i)根据受试者的治疗效果对受试者进行采样;(ii)根据受试者的基线结果将受试者分配到治疗中;或(iii)有选择地报告实验结果。由此产生的偏差具有不同的福利含义:对于足够高的接受成本,在我们的二进制示例中,评估人员在情况(i)和(iii)下损失,而在情况(ii)下受益。

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