Shareholder’s equity (for publicly-traded insurance companies) and retained earnings (for mutual insurance companies). There is no general measure of capital adequacy for property/casualty insurers. Capital adequacy is linked to the riskiness of an insurer’s business. A company underwriting medical device manufacturers needs a larger cushion of capital than a company writing Main Street business, for example.

The supply of insurance available to meet demand. Capacity depends on the industry’s financial ability to accept risk. For an individual insurer, the maximum amount of risk it can underwrite based on its financial condition. The adequacy of an insurer’s capital relative to its exposure to loss is an important measure of solvency.
A property/casualty insurer must maintain a certain level of capital and policyholder surplus to underwrite risks. This capital is known as capacity. When the industry is hit by high losses, such as after the World Trade Center terrorist attack, capacity is diminished. It can be restored by increases in net income, favorable investment returns, reinsuring more risk and or raising additional capital. When there is excess capacity, usually because of a high return on investments, premiums tend to decline as insurers compete for market share. As premiums decline, underwriting losses are likely to grow, reducing capacity and causing insurers to raise rates and tighten conditions and limits in an effort to increase profitability. Policyholder surplus is sometimes used as a measure of capacity.

Money returned to policyholders from an insurance company’s earnings. Considered a partial premium refund rather than a taxable distribution, reflecting the difference between the premium charged and actual losses. Many life insurance policies and some property/casualty policies pay dividends to their owners. Life insurance policies that pay dividends are called participating policies.

The amount of loss paid by the policyholder. Either a specified dollar amount, a percentage of the claim amount, or a specified amount of time that must elapse before benefits are paid. The bigger the deductible, the lower the premium charged for the same coverage.

Pays a certain amount above the policy limit to replace a damaged home, generally 120 percent or 125 percent. Similar to a guaranteed replacement cost policy, which has no percentage limits. Most homeowner policy limits track inflation in building costs. Guaranteed and extended replacement cost policies are designed to protect the policyholder after a major disaster when the high demand for building contractors and materials can push up the normal cost of reconstruction.

An endorsement added to an insurance policy, or clause within a policy, that provides additional coverage for risks other than those in a basic policy.

Possibility of loss.

A provision in an insurance policy that eliminates coverage for certain risks, people, property classes, or locations.

A professional liability policy covering the policyholder for negligent acts and omissions that may harm his or her clients.

A written form attached to an insurance policy that alters the policy’s coverage, terms, or conditions. Sometimes called a rider.