Jacob: What do we have to know about auto manufacturing and auto insurance to answer this exercise?
Rachel: Three domestic firms (GM, Ford, Chrysler) were the auto industry 20 years ago in the U.S.; several hundred auto insurers competed in the insurance market. For many years, there were no entrants or exits from the auto industry, but a dozen entrants and exists from the auto insurance industry each year.
One learns microeconomics by studying industries, not just theory. As much as possible, we apply the theory in the textbook to the insurance industry. Overseas candidates may not know much about U.S. industries, life actuaries may not know much about workers’ compensation, and property-casualty actuaries may not know much about pensions or health insurance. We use examples from various actuarial subject areas, so most candidates can follow the illustrations.