UZH-Logo

Multiple Losses, Ex-Ante Moral Hazard, and the Non-Optimality of the Standard Insurance Contract


Breuer, Michael (2003). Multiple Losses, Ex-Ante Moral Hazard, and the Non-Optimality of the Standard Insurance Contract. Working paper series / Socioeconomic Institute No. 302, University of Zurich.

Abstract

Under certain conditions the optimal insurance policy will offer full coverage above a deductible, as Arrow and others have shown long time ago. Interestingly, the same design of insurance policies applies in case of a single loss and ex-ante moral hazard. However, many insurance policies provide coverage against a variety of losses and the possibilities for the insured to affect the probabilities of each possible loss might be substantially different. The optimal design of a insurance contract providing coverage against different losses therefore should generally differ from the standard form under moral hazard. The paper concentrates on the conditions under which the standard insurance contract holds under moral hazard and more than one loss. It gives some evidence that many insurance contracts should be split up. The main result is, that the relative changes of probabilities due to precautious activities are decisive. On the other hand, under moral hazard it is rarely ever optimal to combine two losses in one insurance contract prescribing only a single deductible for both losses if both losses can occur simultaneously.

Under certain conditions the optimal insurance policy will offer full coverage above a deductible, as Arrow and others have shown long time ago. Interestingly, the same design of insurance policies applies in case of a single loss and ex-ante moral hazard. However, many insurance policies provide coverage against a variety of losses and the possibilities for the insured to affect the probabilities of each possible loss might be substantially different. The optimal design of a insurance contract providing coverage against different losses therefore should generally differ from the standard form under moral hazard. The paper concentrates on the conditions under which the standard insurance contract holds under moral hazard and more than one loss. It gives some evidence that many insurance contracts should be split up. The main result is, that the relative changes of probabilities due to precautious activities are decisive. On the other hand, under moral hazard it is rarely ever optimal to combine two losses in one insurance contract prescribing only a single deductible for both losses if both losses can occur simultaneously.

Downloads

516 downloads since deposited on 29 Nov 2011
131 downloads since 12 months
Detailed statistics

Additional indexing

Item Type:Working Paper
Communities & Collections:03 Faculty of Economics > Department of Economics
Working Paper Series > Socioeconomic Institute (former)
Dewey Decimal Classification:330 Economics
JEL Classification:D80, D82
Language:English
Date:April 2003
Deposited On:29 Nov 2011 22:32
Last Modified:05 Apr 2016 15:11
Series Name:Working paper series / Socioeconomic Institute
Official URL:http://www.econ.uzh.ch/wp.html
Permanent URL: http://doi.org/10.5167/uzh-52174

Download

[img]
Preview
Filetype: PDF
Size: 331kB

TrendTerms

TrendTerms displays relevant terms of the abstract of this publication and related documents on a map. The terms and their relations were extracted from ZORA using word statistics. Their timelines are taken from ZORA as well. The bubble size of a term is proportional to the number of documents where the term occurs. Red, orange, yellow and green colors are used for terms that occur in the current document; red indicates high interlinkedness of a term with other terms, orange, yellow and green decreasing interlinkedness. Blue is used for terms that have a relation with the terms in this document, but occur in other documents.
You can navigate and zoom the map. Mouse-hovering a term displays its timeline, clicking it yields the associated documents.

Author Collaborations