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Do Insurance Companies Possess an Informational Monopoly? Empirical Evidence From Auto Insurance
Journal article   Peer reviewed

Do Insurance Companies Possess an Informational Monopoly? Empirical Evidence From Auto Insurance

Paul Kofman and Gregory P. Nini
The Journal of risk and insurance, v 80(4), pp 1001-1026
Dec 2013

Abstract

Business & Economics Business, Finance Economics Social Sciences
This article investigates the impact of policyholder tenure on contractual relationships in nonlife insurance markets. For a sample of auto insurance policies, we find that average risk decreases with policyholder tenure, but the effect is entirely due to the impact of observable information. We reject the hypothesis that the incumbent insurer is privately learning faster about quality of their policyholders. We highlight the importance of a public signal regarding policyholders' claims experiences and suggest alternative explanations for the unconditional relationships in the data.

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6 citations in Scopus

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Domestic collaboration
International collaboration
Web of Science research areas
Business, Finance
Economics
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