General Insurance Concepts
This topic covers the foundations shared by all insurance: how risk works, the special features of an insurance contract, who may buy a policy, and the basic steps by which an insurer decides whom to insure and at what price. These principles are consistent nationwide.
Risk, Peril, and Hazard
Risk is uncertainty about loss. Insurers deal only with pure risk (a chance of loss or no loss, with no chance of gain), not speculative risk (like gambling). A peril is the cause of a loss (such as illness or death). A hazard is a condition that increases the likelihood or severity of a loss: physical hazards are tangible conditions (a heart condition), moral hazards involve dishonesty (faking a claim), and morale hazards involve carelessness because insurance exists. The main ways to handle risk are to avoid, retain, reduce, share, or transfer it; insurance is the transfer of risk from an individual to an insurer in exchange for a premium.
The Law of Large Numbers and Adverse Selection
Insurance works by pooling many similar exposure units so that individual uncertainty becomes group predictability. The law of large numbers states that the larger the number of similar, independent exposures, the more closely actual losses will match predicted losses, which lets insurers set accurate rates. A constant threat to this pooling is adverse selection: people who are more likely to suffer a loss tend to seek insurance more aggressively than low-risk people. Insurers counter adverse selection through underwriting, medical questions, waiting periods, and exclusions so the pool is not overloaded with high-risk insureds.
Insurable Interest and Legal Contract Elements
To buy life or health insurance on someone, the applicant must have an insurable interest, meaning a genuine expectation of loss (financial or emotional) if the insured is harmed. In life insurance, insurable interest must exist when the policy begins (at application), not at the time of the claim. Every valid contract needs four elements: offer and acceptance (agreement), consideration (the premium and the promises exchanged), competent parties (legal age, sound mind, not intoxicated), and a legal purpose.
Special Features of Insurance Contracts
Insurance contracts have distinctive characteristics. They are contracts of adhesion (written by the insurer and offered take-it-or-leave-it, so ambiguities are read against the insurer). They are aleatory (the dollar amounts exchanged are unequal and depend on chance). They are unilateral (only the insurer makes a legally enforceable promise). They are conditional (benefits are paid only if conditions, like paying premiums and filing proof of loss, are met). They also require utmost good faith, meaning both parties rely on the honesty of the other. Statements on an application are usually representations (believed true to the best of the applicant's knowledge) rather than warranties (guaranteed literally true).
Producers, Agency, and Underwriting Basics
A producer (agent) legally represents the insurer, not the applicant, and binds the insurer through express, implied, and apparent authority. Producers owe duties of honesty and must avoid misrepresentation, twisting, and rebating. Underwriting is the process of classifying and selecting risks: the insurer reviews the application, medical information, and other reports to decide whether to accept the risk and at what premium class (preferred, standard, or substandard/rated), or to decline it. Fair underwriting spreads risk appropriately and protects the pool while complying with laws that prohibit unfair discrimination.