摘要: Optimum insurance between a risk-neutral or risk-averse insurer and client has been widely studied under conditions of agreement about the distribution probabilities loss. The condition is relaxed here, assumed to be more optimistic than insurer. When optimism defined broadly, optimum contracts can have almost any form in general will not even resemble contracts. However, are that restricts type disagreement. Under same condition, contract for higher deductible less one.