Quantitative Economics

Journal Of The Econometric Society

Edited by: Stéphane Bonhomme • Print ISSN: 1759-7323 • Online ISSN: 1759-7331

Quantitative Economics: Jan, 2025, Volume 16, Issue 1

Econometrics of Insurance with Multidimensional Types

https://doi.org/10.3982/QE1071
p. 267-294

Gaurab Aryal|Isabelle Perrigne|Quang Vuong|Haiqing Xu

In this paper, we address the identification and estimation of insurance models where insurees have private information about their risk and risk aversion. The model includes random damages and allows for several claims, while insurees choose from a finite number of coverages. We show that the joint distribution of risk and risk aversion is nonparametrically identified despite bunching due to multidimensional types and a finite number of coverages. Our identification strategy exploits the observed number of claims as well as an exclusion restriction, and a full support assumption. Furthermore, our results apply to any form of competition. We propose a novel estimation procedure combining nonparametric estimators and GMM estimation that we illustrate in a Monte Carlo study.


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Supplemental Material

Supplement to "Econometrics of Insurance with Multidimensional Types"

Gaurab Aryal, Isabelle Perrigne, Quang Vuong and Haiqing Xu

The supplemental matertial contains three appendices. Appendix A presents the identification results when the damage distribution is truncated at the deductible. Appendix B considers alternative specifications to the CARA function and the Poisson distribution for
the insurees’ utility function and the number of accidents. Appendix C establishes several lemmas mentioned in the text or used in the appendices. Some can be of independent interest whereas others are likely known though we have yet found references for them.

Supplement to "Econometrics of Insurance with Multidimensional Types"

Gaurab Aryal, Isabelle Perrigne, Quang Vuong and Haiqing Xu

The replication package for this paper is available at https://doi.org/10.5281/zenodo.13952073. The Journal checked the data and codes included in the package for their ability to reproduce the results in the paper and approved online appendices.

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