Mutual insurance companies and stock insurance companies are different forms of organized risk sharing: policyholders … necessary for a stock insurer to offer insurance at a fair premium, but not for a mutual. In the presence of an ownermanager …

We take a dynamic perspective on insurance markets under adverseselection and study a generalized Rothschildand … dynamic contracts. An unconditional dynamiccontract has insurance companies offeringcontracts where the terms of the contract … on individualpast performance (like in car insurances). Weinvestigate whether allowing insurance companies to offer …

) shows that this constraint might well bind: insured could get higher expected utility if insurance contracts would allow … optimal insurance contract he derives underestimates the relevance of the non-negativity constraint on indemnities. This paper …

Under certain conditions the optimal insurance policy will offer full coverage above a deductible, as Arrow and others … have shown long time ago. Interestingly, the same design of insurance policies applies in case of a single loss and ex …-ante moral hazard. However, many insurance policies provide coverage against a variety of losses and the possibilities for the …