The first paper, on external financing and insurance cycles, contains a wealth of information on trends and patterns in the industry's financial structure. The last essay, which compares performance of stock and mutual insurance companies, takes a fresh look at the way a company's organizational structure affects its responses to different economic situations. Two papers focus on rate regulation in the auto insurance industry, and provide broad overviews of the structure and economics of the insurance industry as a whole. Also addressed are the system of regulating insurance companies in the United States, who insures the insurers, and the effects of tax law changes in the 1980s on the prices of insurance policies.