Inferring Risk Perceptions and Preferences Using Choice from Insurance Menus: Theory and Evidence

Keith Marzilli Ericson, Philipp Kircher, Johannes Spinnewijn and Amanda Starc

The Economic Journal, 2021, vol. 131, issue 634, 713-744

Abstract: Demand for insurance can be driven by high risk aversion or high-risk. We show how to separately identify risk preferences and risk types using only choices from menus of insurance plans. Our revealed preference approach does not rely on rational expectations, nor does it require access to claims data. We show what can be learned non-parametrically about the type distributions from variation in insurance plans, offered separately to random cross-sections or offered as part of the same menu to one cross-section. We prove that our approach allows for full identification in the textbook model with binary risks, and extend our results to continuous risks. We illustrate our approach using the Massachusetts Health Insurance Exchange, where choices provide informative bounds on the type distributions, especially for risks, but do not allow us to reject homogeneity in preferences.

Date: 2021
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Related works:
Working Paper: Inferring risk perceptions and preferences using choice from insurance menus: theory and evidence (2020)
Working Paper: Inferring Risk Perceptions and Preferences using Choice from Insurance Menus: Theory and Evidence (2015)
Working Paper: Inferring risk perceptions and preferences using choice from insurance menus: theory and evidence (2015)
Working Paper: Inferring Risk Perceptions and Preferences using Choice from Insurance Menus: Theory and Evidence (2015)
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