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Home | Events Archive | Efficient Coding and Risky Choice
Seminar

Efficient Coding and Risky Choice


  • Location
    Online
  • Date and time

    December 02, 2020
    16:00 - 17:00

If you would like to sign up for the mailing list of this seminar series, please send an email to seminar@tinbergen.nl.

Abstract

We experimentally test a theory of risky choice in which the perception of a lottery payoff is noisy due to information processing constraints in the brain. We model perception using the principle ofefficient coding, which implies that perception is most accurate for those payoffs that occur most frequently. Across two pre-registered laboratory experiments, we manipulate the distribution fromwhich payoffs in the choice set are drawn. In our first experiment, we find that risk taking is more sensitive to payoffs that are presented more frequently. In a follow-up task, we incentivize subjects
to classify which of two symbolic numbers is larger. Subjects exhibit higher accuracy and faster response times for numbers they have observed more frequently. In our second experiment, we manipulate the payoff distribution so that efficient coding induces the decision maker's perceived value function to switch from concave to convex. We find that demand for risk is significantly higher when efficient coding induces a convex value function. Together, our experimental results suggest that risk taking depends systematically on the payoff distribution to which the decision maker's perceptual system has recently adapted. More broadly, we provide novel evidence of the importance of imprecise and efficient coding in economic decision-making. Joint with Lawrence J. Jinz.

Click here to read full paper.

JEL classication: G02, G41
Keywords: efficient coding, perception, risky choice, neuroeconomics