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A Model of Competing Narratives

Kfir Eliaz, Ran SpieglerEconomics计量经济学FT50
American Economic Review2020-11-30University of Utah; University College London; Tel Aviv UniversityDOI
Citations147
Influential8
References29
Semantic Scholar

We formalize the argument that political disagreements can be traced to a “clash of narratives.” Drawing on the “Bayesian Networks” literature, we represent a narrative by a causal model that maps actions into consequences, weaving a selection of other random variables into the story. Narratives generate beliefs by interpreting long-run correlations between these variables. An equilibrium is defined as a probability distribution over narrative-policy pairs that maximize a representative agent's anticipatory utility, capturing the idea that people are drawn to hopeful narratives. Our equilibrium analysis sheds light on the structure of prevailing narratives, the variables they involve, the policies they sustain, and their contribution to political polarization. (JEL D72, D83, D85, F52)

NarrativeArgument (complex analysis)EconomicsPositive economicsPoliticsEpistemologyBayesian probabilitySociologyMathematical economicsEconometricsNeoclassical economicsComputer science