Implications of Dynamic Trading for Insurance Markets
AbstractWe study the interaction between insurance and capital markets within a single but general framework. We show that capital markets greatly enhance the risk sharing capacity of insurance markets and the scope of risks that are insurable because efficiency does not depend on the number of agents at risk, nor on risks being independent, nor on the preferences and endowments of agents at risk being the same. We show that agents share risks by buying full coverage for their individual risks and provide insurance capital through stock markets. We show that aggregate risk enters private insurance as a positive loading on insurance prices and despite that agents will buy full coverage. The loading is determined by the risk premium of investors in the stock market and hence does not depend on the agent's willingness to pay. Agents provide insurance capital by trading an equally weighted portfolio of insurance company shares and a riskless asset. We are able to construct agents' optimal trading strategies explicitly and for very general preferences.
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Bibliographic InfoPaper provided by Barcelona Graduate School of Economics in its series Working Papers with number 83.
Date of creation: Nov 2003
Date of revision:
full insurance; risk sharing; portfolio choice; welfare; hetrogeneity;
Find related papers by JEL classification:
- G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
- G12 - Financial Economics - - General Financial Markets - - - Asset Pricing
- G22 - Financial Economics - - Financial Institutions and Services - - - Insurance; Insurance Companies
- D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Doherty, N.A. & Dionne, G., 1989.
"Risk Pooling, Contract Structure and Organizational Form of Insurance Firms,"
Cahiers de recherche
8935, Universite de Montreal, Departement de sciences economiques.
- Doherty, N.A. & Dionne, G., 1989. "Risk Pooling, Contract Structure And Organizational Form Of Insurance Firms," Cahiers de recherche 8935, Centre interuniversitaire de recherche en économie quantitative, CIREQ.
- Doherty, Neil A & Schlesinger, Harris, 1983. "Optimal Insurance in Incomplete Markets," Journal of Political Economy, University of Chicago Press, vol. 91(6), pages 1045-54, December.
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