Agency Theory & Information Asymmetry

Insurance companies and their customers don’t always want the same things. This fundamental tension shapes how insurance works.

When you apply for coverage, you know far more about your actual risks than the insurer does. Maybe you’re a cautious driver applying for auto insurance, or perhaps you have a family history of heart disease that you didn’t mention on your health insurance application. This knowledge gap creates problems.

High-risk individuals naturally gravitate toward insurance, while the healthiest and safest among us might skip it altogether. Without safeguards, insurers end up with customer pools that are much riskier than expected. To counter this, insurance companies deploy several tactics: they ask detailed questions, examine medical records, use statistical models to set different prices for different risk levels, and design policies with various deductibles and coverage limits that essentially force customers to reveal their true risk tolerance.

Once you’re insured, another problem emerges. With protection in place, you might take more risks or be less careful than before. Why shovel your icy sidewalk if you’re covered for slip-and-fall lawsuits? Why bother with that expensive security system when your homeowner’s policy will replace stolen items?

Insurers fight this behavior by making you share the pain. Deductibles ensure you feel some financial sting from every claim. Coverage limits cap their exposure to truly catastrophic losses. Claims investigations weed out fraud. And if you file too many claims, your premiums will rise, creating a direct financial incentive to be careful.

The whole system gets even more complicated when insurance agents enter the picture. These intermediaries serve two masters – the insurer who pays their commission and the customer who relies on their advice. Their compensation structure sometimes rewards selling expensive policies rather than finding the perfect fit for the customer’s needs.

Understanding these inherent conflicts helps explain why insurance policies are so complex, why premiums vary dramatically between individuals, and why the market functions the way it does. The system isn’t perfect, but its features evolved precisely to manage these conflicting interests and information imbalances.

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