Insurance is the equitable transfer of the risk of a loss, from one entity to another in exchange for payment. It is a form of
risk management primarily used to
hedge against the risk of a contingent, uncertain loss.
An insurer, or insurance carrier, is a company selling the insurance; the insured, or policyholder, is the person or entity buying the insurance policy. The amount of
money to be charged for a certain amount of insurance coverage is called the premium.
Risk management, the practice of
appraising and controlling risk, has evolved as a discrete field of study and practice.
The transaction involves the insured assuming a guaranteed and known relatively small loss in the form of payment to the insurer in exchange for the insurer's promise to compensate (
indemnify) the insured in the case of a financial (personal) loss. The insured receives a
contract, called the
insurance policy, which details the conditions and circumstances under which the insured will be financially compensated.