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Manuel Foerster

Publications and source records attributed to Manuel Foerster.

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Strategic communication of narratives: An experiment

We investigate the strategic communication of narratives under model uncertainty. The sender has private information about the true data-generating process of publicly observable data. The receiver is uncertain about how to interpret the data, but aware of the sender's incentives to strategically provide interpretations (``narratives''). We theoretically show that the size of the conflict of interest between the sender and the receiver is a crucial determinant of equilibrium communication. In particular, the stronger the sender's bias, (i) the more senders exaggerate their information and (ii) the more receivers correct the sender's action recommendations. In a laboratory experiment, we find evidence in line with both predictions, suggesting that people in complex and uncertain environments take a narrator's strategic incentives into account. Additional analyses reveal that narrative likelihood does not drive receiver behavior and that narratives are, on average, slightly persuasive only when bias is low.

econ.TH

Strategic communication of narratives

We model the communication of narratives as a cheap-talk game under model uncertainty. The sender has private information about the true data generating process of publicly observable data. The receiver is uncertain about how to interpret the data, but aware of the sender's incentives to strategically provide interpretations ("narratives"). We introduce a general class of ambiguity rules resolving the receiver's ignorance of the true data generating process, including maximum likelihood and max-min expected utility. The set of equilibria is characterized by a positive integer $N$: we derive an algorithm which yields an equilibrium that induces $n$ different actions for each $1\leq n \leq N$. We further show that the persuasive power of the sender is weaker in the sense of state-wise dominance than with a na\"ive receiver being unaware of the sender's incentives.

econ.TH