This study starts with two hypothetical hurricanes causing $7 billion each in insured property losses, and tracks those losses through the insurance system to find out where they would fall. It also analyzes the financial impact two such losses would have on primary companies and reinsurers, as a group, in the U.S. and abroad. The study also collected information on actual hurricane losses for 1983 and 1985, resulting in a substantial upward revision of earlier loss estimates for those storms.