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Insurance, in law and economics, is a form of risk management primarily used to hedge against the risk of potential financial loss. Insurance is defined as the equitable transfer of the risk of a potential loss, from one entity to another, in exchange for a premium and duty of care.

Principles of insurance

Losses must be uncertain.

The rate and distribution of losses must be predictable: To set premiums (prices) insurers must be able to estimate them accurately. This is done using the Law of Large Numbers which states that: The larger the number of homogenous exposures considered, the more closely the losses reported will equal the underlying probability of loss. If the coverage is unique, the insured will pay a correspondingly higher premium. Lloyd's of London often accepts unique coverages. 0, are this year set to vote for the best. (e. g. , the insuring of Tina Turner's legs and Jennifer Lopez's buttocks)

The loss must be significant: The legal principle of De minimis dictates that trivial matters are not covered. Furthermore, rational insurance uses existing insurance when the transaction costs dictate that filing a claim is not rational.

The loss must not be catastrophic: If the insurer is insolvent, it will be unable to pay the insured. In the United States, there is a system of Guarantee Funds that run at the state level to reimburse insured people whose insurance companies have become insolvent.