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The Description-Experience gap in individual risky decisions and beyond| title | The Description-Experience gap in individual risky decisions and beyond |
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| start_date | 2025/04/10 |
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| schedule | 14h |
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| online | no |
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| location_info | salle Langevin |
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| summary | In the first part of the talk, I revisit the widely studied description-experience (DE) gap in individual choice via an experiment investigating the causal role of sampling bias, ambiguity sensitivity, and aspects of cognition. Using a model-free approach, we elicit a DE gap similar in direction and size to the literature’s average and find that when each factor is considered in isolation, sampling bias is the only significant driver of the gap. Model-mediated analysis reveals that rare events are generally overweighted and suggests the presence of a smaller DE gap even in the absence of sampling bias.
In the second part of the talk, I discuss an investigation of the DE gap in the domain of social uncertainty, where individuals learn about the cooperativeness of another agent either through description of through experience. Contrary to expectations from the individual uncertainty literature, we find that conditional cooperators are more sensitive to rare, cooperative, events in experience relative to description. We illustrate how stronger priors under social than under individual uncertainty can account for this disparity.
In the third and last part of the talk, I will briefly mention an extension of the Description vs. Experience framework into the domain of meta-science that I have recently started working on. |
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| responsibles | Palminteri |
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Workflow history| from state (1) | to state | comment | date |
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| submitted | published | | 2025/04/01 13:35 UTC |
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