A Reexamination of Coinsurance Clauses
重新审视共同保险条款，发现传统观点认为应购买足额保险，但存在其他有效策略；共同保险与免赔条款的相互作用使选择更复杂，定价异常可能导致投保人未满足要求，并讨论了定价与产品开发的启示及解决方案。
A coinsurance clause is an agreement to own an amount of insurance equal to at least a specified percentage of the value of the covered property. Conventional wisdom and established economic theory hold that the required amount of insurance usually should be purchased, but situations in which other strategies prove useful are easily found. Potential interaction between coinsurance and deductible clauses makes the selection problem more complicated than commonly assumed, and pricing anomalies may cause some insureds to fail to meet coinsurance requirements. Implications for pricing and product development are discussed and a possible solution is proposed.