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The Catastrophic Effects Of Natural Disasters On Insurance Markets, W. Kip Viscusi, Patricia Born

Vanderbilt Law School Faculty Publications

Natural catastrophes often have catastrophic risks on insurance companies as well as on the insured. Using a very large dataset on homeowners insurance coverage by state, by firm, and by year for the 1984 to 2004 period, this paper documents the positive effect on losses and loss ratios of both unexpected catastrophes as well as large events that the authors term "blockbuster catastrophes." Insurers adapt to these catastrophic risks by raising insurance rates, leading to lower loss ratios after the catastrophic event. There is a widespread event of unexpected catastrophes and blockbuster catastrophes that reduces total premiums earned in the …