On various criteria of optimality in probabilistic decision-making
On weighted synthesis of judgements.
On weighted synthesis of judgements. (Short Communication).
On well-posedness for parametric vector quasiequilibrium problems with moving cones
In this paper we consider weak and strong quasiequilibrium problems with moving cones in Hausdorff topological vector spaces. Sufficient conditions for well-posedness of these problems are established under relaxed continuity assumptions. All kinds of well-posedness are studied: (generalized) Hadamard well-posedness, (unique) well-posedness under perturbations. Many examples are provided to illustrate the essentialness of the imposed assumptions. As applications of the main results, sufficient conditions...
Operations on cyclically ordered sets
Optimal contracts in continuous-time models.
Optimal environmental policy and the dynamic property in LDCs.
Optimal investment strategy for a non-life insurance company: quadratic loss
The aim of this paper is to construct an optimal investment strategy for a non-life insurance business. We consider an insurance company which provides, in exchange for a single premium, full coverage to a portfolio of risks which generates losses according to a compound Poisson process. The insurer invests the premium and trades continuously on the financial market which consists of one risk-free asset and n risky assets (Black-Scholes market). We deal with the insurer's wealth path dependent disutility...
Optimal investment under behavioural criteria - a dual approach
We consider a discrete-time, generically incomplete market model and a behavioural investor with power-like utility and distortion functions. The existence of optimal strategies in this setting has been shown in Carassus-Rásonyi (2015) under certain conditions on the parameters of these power functions. In the present paper we prove the existence of optimal strategies under a different set of conditions on the parameters, identical to the ones in Rásonyi-Rodrigues (2013), which...
Optimal premium pricing for a heterogeneous portfolio of insurance risks.
Optimal Pricing and Lot-Sizing Decisions Under Weibull Distribution Deterioration and Trade Credit Policy
Optimal pricing and production master planning in a multiperiod horizon considering capacity and inventory constraints.
Optimal reinsurance.
Optimal risk sharing as a cooperative game
The problem of choosing an optimal insurance policy for an individual has recently been better understood, particularly due to the papers by Gajek and Zagrodny. In this paper we study its multi-agent version: we assume that insureds cooperate with one another to maximize their utility function. They create coalitions by bringing their risks to the pool and purchasing a common insurance contract. The resulting outcome is divided according to a certain rule called strategy. We address the fundamental...
Optimal singular stochastic problem on harvesting system.
Optimal stopping of a 2-vector risk process
The following problem in risk theory is considered. An insurance company, endowed with an initial capital a > 0, receives insurance premiums and pays out successive claims from two kind of risks. The losses occur according to a marked point process. At any time the company may broaden or narrow down the offer, which entails the change of the parameters of the underlying risk process. These changes concern the rate of income, the intensity of the renewal process and the distribution of claims....
Optimal stopping of a sequence of maxima over an unobservable sequence of maxima
Optimal streams of premiums in multiperiod credibility models
Optimal arrangement of a stream of insurance premiums for a multiperiod insurance policy is considered. In order to satisfy solvency requirements we assume that a weak Axiom of Solvency is satisfied. Then two optimization problems are solved: finding a stream of net premiums that approximates optimally 1) future claims, or 2) "anticipating premiums". It is shown that the resulting optimal streams of premiums enable differentiating between policyholders much more quickly than one-period credibility...
Optimal Taxation Policy Maximum-Entropy Approach
Optimality criteria for deterministic discrete-time infinite horizon optimization.