ASLI study materials
ASLI study resources

ASLI key terms

ASLI · Get comfortable with the vocabulary.

Insurable Interest

A financial stake in the person or property being insured such that the policyholder would suffer a genuine loss if the insured event occurred. It must exist at the time the policy is purchased.

Related: Indemnity Principle, Moral Hazard
Indemnity Principle

The idea that an insurance payout should restore the policyholder to roughly the financial position held before a loss, not create profit. It underpins most property and liability coverage.

Related: Insurable Interest, Actual Cash Value
Law of Large Numbers

A statistical principle holding that as the number of similar independent exposure units grows, actual results tend to approach expected results. It allows insurers to predict losses more reliably across large groups.

Related: Risk Pooling, Premium
Risk Pooling

Combining many separate exposures into one group so that the premiums of the many fund the losses of the few. This spreading of risk is the core mechanism that makes insurance work.

Related: Law of Large Numbers, Adverse Selection
Adverse Selection

The tendency for people with higher-than-average risk to seek or keep insurance more eagerly than low-risk people. Insurers counter it through underwriting, exclusions, and waiting periods.

Related: Risk Pooling, Underwriting
Moral Hazard

The increased likelihood of loss or exaggerated claims caused by the presence of insurance itself, such as carelessness or dishonesty. Insurers manage it with deductibles, exclusions, and claim investigation.

Related: Deductible, Insurable Interest
Pure Risk

A situation offering only the chance of loss or no loss, with no possibility of gain. Insurers generally insure pure risks such as fire or liability but not speculative ones.

Related: Speculative Risk, Peril
Speculative Risk

A situation involving the possibility of either gain or loss, such as investing in a business or gambling. Because it is voluntary and offers upside, it is generally not insurable.

Related: Pure Risk
Peril

The specific cause of a loss, such as fire, windstorm, theft, or collision. Policies list covered perils to define what events will trigger payment.

Related: Hazard, Named Peril Policy
Hazard

A condition that increases the chance or severity of a loss without being the cause itself. Examples include icy steps, faulty wiring, or a history of reckless driving.

Related: Peril, Moral Hazard
Offer and Acceptance

The first two elements of forming a valid contract: one party proposes terms and the other agrees to them. In insurance, the application is usually the offer and the policy issuance is the acceptance.

Related: Consideration, Legal Purpose
Consideration

The value each party exchanges to make a contract binding. In insurance, the policyholder pays premium and the insurer promises to pay covered claims.

Related: Offer and Acceptance, Premium
Aleatory Contract

An agreement in which the amounts exchanged by the parties are unequal and depend on an uncertain event. Insurance is aleatory because a small premium may produce a large claim payment.

Related: Contract of Adhesion, Indemnity Principle
Contract of Adhesion

A contract drafted by one party and offered to the other on a take-it-or-leave-it basis. Because the insurer writes the wording, ambiguities are generally interpreted in the policyholder's favor.

Related: Aleatory Contract, Reasonable Expectations Doctrine
Utmost Good Faith

The principle that both parties must deal honestly and disclose material facts. Insurers rely on accurate application information, and misrepresentation can allow a policy to be voided.

Related: Material Misrepresentation, Concealment
Material Misrepresentation

A false statement on an application that would have influenced the insurer's decision to issue coverage or set its price. It may give the insurer grounds to rescind the policy.

Related: Utmost Good Faith, Concealment
Concealment

The intentional failure to disclose a fact that the insurer needs in order to evaluate a risk. Material concealment can make a policy voidable by the insurer.

Related: Utmost Good Faith, Material Misrepresentation
Waiver

The voluntary giving up of a known right under a policy, such as an insurer's right to require proof of loss by a deadline. Once waived, the right may not be reclaimed.

Related: Estoppel
Estoppel

A legal bar that prevents a party from asserting a right after its earlier conduct led another party to rely on that conduct to their detriment. It often follows a waiver.

Related: Waiver
Deductible

The amount of a covered loss the policyholder must pay out of pocket before the insurer pays. Higher deductibles lower premium but increase the insured's share of each loss.

Related: Coinsurance Clause, Moral Hazard
Coinsurance Clause

A property policy provision requiring the insured to carry coverage equal to a stated percentage of the property's value. If underinsured, the insured shares the loss through a reduced claim payment.

Related: Deductible, Actual Cash Value
Actual Cash Value

A method of valuing a loss as replacement cost minus depreciation. It reflects the used value of damaged property rather than the cost to buy it new.

Related: Replacement Cost, Indemnity Principle
Replacement Cost

A valuation method that pays what it would cost to repair or replace damaged property with new property of similar kind and quality, without deducting depreciation. It typically costs more in premium.

Related: Actual Cash Value
Named Peril Policy

A property policy that covers only the perils specifically listed in the contract, such as fire, lightning, and windstorm. The insured bears the burden of showing the loss resulted from a listed peril.

Related: Peril, All-Risks Policy
All-Risks Policy

A policy that covers all causes of loss except those expressly excluded. It is broader than a named peril policy, and the insurer bears the burden of proving an exclusion applies.

Related: Named Peril Policy, Exclusion
Exclusion

A policy provision that removes specified losses, property, or persons from coverage. Common examples include intentional acts, wear and tear, and earth movement.

Related: All-Risks Policy, Named Peril Policy
Third-Party Liability

Coverage for the insured's legal responsibility to others for bodily injury or property damage. It protects the insured against claims brought by someone else, not against the insured's own losses.

Related: Negligence, Liability Limit
Negligence

Failure to use the degree of care a reasonable person would use in similar circumstances, resulting in harm. It is the basis for most liability claims covered by casualty insurance.

Related: Third-Party Liability
Underwriting

The process of evaluating an applicant's risk and deciding whether to accept it and on what terms. It may result in standard, preferred, or substandard classification, or in declination.

Related: Adverse Selection, Risk Classification
Risk Classification

Grouping applicants with similar expected loss characteristics so each group pays a premium that reflects its own risk level. It supports fairness and helps control adverse selection.

Related: Underwriting, Adverse Selection
Mortality Table

A statistical chart showing the rate at which people in a defined group are expected to die at each age. Life insurers use it to calculate the cost of death protection and set premiums.

Related: Morbidity Rate, Premium
Morbidity Rate

The frequency with which illness or injury occurs within a population over a period. Health insurers use it to estimate expected claim costs and to price coverage.

Related: Mortality Table
Beneficiary

The person or entity named to receive the death benefit of a life insurance policy. A primary beneficiary is first in line; a contingent beneficiary receives the proceeds if the primary is unavailable.

Related: Death Benefit, Cash Value
Cash Value

The savings component that builds inside a permanent life policy and is available to the owner through loans, withdrawals, or surrender. Term policies generally have no cash value.

Related: Beneficiary, Term Life Insurance
Term Life Insurance

Coverage that pays a death benefit only if the insured dies within a specified period. It provides pure protection with no savings element and is typically the least expensive form of life insurance.

Related: Cash Value, Death Benefit
Death Benefit

The amount the insurer pays to the beneficiary when the insured dies while the policy is in force. Policy loans or unpaid premiums may reduce the amount actually paid.

Related: Beneficiary, Cash Value
Coordination of Benefits

Rules that determine how two or more health plans share payment for the same medical expense so total payments do not exceed the cost. It prevents duplicate payment from overlapping coverage.

Related: Deductible, Indemnity Principle
Waiting Period

A specified time after a policy begins or a condition arises during which benefits are not payable. It helps control adverse selection and claims for pre-existing conditions.

Related: Adverse Selection, Pre-existing Condition
Pre-existing Condition

A health condition that was diagnosed or treated before a person's coverage took effect. Policies may limit or delay benefits for such conditions under applicable rules.

Related: Waiting Period
Premium

The amount a policyholder pays, usually periodically, to keep insurance coverage in force. It reflects expected losses, expenses, and the insurer's margin, adjusted for the insured's risk characteristics.

Related: Consideration, Mortality Table
Fiduciary Duty

The legal obligation of an insurance producer or insurer to act in the client's best interest and handle funds responsibly. Breach can lead to regulatory penalties and license action.

Related: Twisting, Rebating
Twisting

Inducing a policyholder to drop existing coverage through misleading or incomplete comparisons in order to sell a replacement policy. It is an unfair trade practice subject to regulatory penalties.

Related: Fiduciary Duty, Rebating
Rebating

Offering part of a producer's commission or other inducement to a buyer to persuade them to purchase insurance. Most states prohibit it as an unfair trade practice.

Related: Twisting, Fiduciary Duty
Reasonable Expectations Doctrine

An interpretive principle under which coverage is honored according to the reasonable expectations of the policyholder, even where strict policy wording might suggest otherwise. It commonly applies to ambiguous language in adhesion contracts.

Related: Contract of Adhesion
Liability Limit

The maximum amount an insurer will pay for a covered claim under a policy or coverage part. Amounts above the limit are the insured's responsibility.

Related: Third-Party Liability, Deductible