Ideological Bias and Trust in Information Sources
研究内生信任如何放大意识形态偏见，模型显示个人推理中的微小偏见可导致对信息来源信任的巨大差异，并可能引发过度自信和持续分歧。
We study the role of endogenous trust in amplifying ideological bias. Agents in our model learn a sequence of states from sources whose accuracy is ex ante uncertain. Agents learn these accuracies by comparing their own reasoning about the states based on introspection or direct experience to the sources’ reports. Small biases in this reasoning can cause large ideological differences in the agents’ trust in information sources and their beliefs about the states, and may lead agents to become overconfident in their own reasoning. Disagreements can be similar in magnitude whether agents see only ideologically aligned sources or diverse sources.