The paper proposes a fuzzy model for the choice of strategies for interaction with stakeholders of an organization, participating in a strategic alliance. It is assumed that the entry of an organization into a strategic alliance leads to changes in its relationship with stakeholders. This, in turn, leads to changes in the expediency of applying various types of interaction strategies between them. It is also assumed that changes in the characteristics of the relationship between an organization and stakeholders depend on some characteristics of the alliance. In the model, relationship characteristics and alliance characteristics are given in a fuzzy form using term sets of linguistic variables. Determination of the most appropriate types of strategies for interaction between an organization and stakeholders is based on the fuzzy inference rule base.
Subject. We determine the substance of public health as a target of management in terms of investment. Objectives. We analyze theoretical forerunners of the origination and the development of the public health concept in terms of its economic substance as a resource and investee. Methods. We sort out literary data and carry out the logic, focused and content analysis of the text. Results. The article analyzed approaches to understanding the substance and evolution of health and public health as concepts. We believe that it is necessary to specify the definition of public health in terms of its economic substance as a resource. We correspondingly analyzed the related concept, such as health capital, human capital. We suggest interpreting the public health as a medical, social and economic resource, whose quality and value are gauged with a set of demographic, medical and statistical metrics. Their level depends on the living conditions of people who are virtually investees. Conclusions and Relevance. The theoretical study and suggested definition contribute to the development of the public health theory in terms of its economic substance and dependence on the socio-economic situation in the country or the region, and the volume and method of investing in the living conditions of people. The findings can be used for further research into the nexus of the mix and volume of investment in public health and its level in the region.
Запропоновано метод портфельного iнвестування, що дозволяє формувати оптимальну структуру портфеля з урахуванням ступенiв задоволеностi запитiв груп зацiкавлених сторiн, ризикiв i невизначеностi зовнiшнього i внутрiшнього середовища. Розглянуто модель, що представляє собою задачу нечiткого нелiнiйного програмування. В якостi цiльової функцiї використовується зважене середнє корисностей проектiв. Корисностi проектiв являють собою мультиплiкативнi функцiї типу Кобба-Дугласа, що використовують поряд з фiнансовими показниками експертнi вербальнi оцiнки якiсних показникiв задоволеностi запитiв стейкхолдерiв, перетворенi в нечiткi числа. Показники ступенiв в данiй функцiї вiдображають важливiсть стейкхолдерiв для органiзацiї з точки зору iснуючого ресурсного обмiну мiж компанiєю та стейкхолдером i ступеня взаємного впливу. Кiлькiсний облiк ризикiв здiйснюється на основi пiдходу Г. Марковiца i методу сценарiїв. Невизначенiсть i недолiк iнформацiї для показника економiчної ефективностi проектiв моделюється за допомогою використання нечiтко-множинного пiдходу. Обмеження в моделi також нечiткi. Перехiд вiд нечiткої задачi оптимiзацiї до чiткої проводиться шляхом завдання рiвнiв достовiрностi для цiльової функцiї i обмежень. Вибiр певного рiвня достовiрностi також дозволяє в деякiй мiрi враховувати невизначенiсть, що, в свою чергу, впливає на склад портфеля. Рiшення моделi знаходиться чисельно з використанням запропонованого методу, що дозволяє на основi нечiтких корисностей знаходити нечiтку цiльову функцiю та обмеження, i переводити нечiтку модель в чiтке завдання квадратичного програмування при заданих рiвнях достовiрностi. Розглянуто приклад формування оптимального портфеля iнвестицiйних проектiв рибопромислового пiдприємства Ключовi слова: оптимiзацiя портфеля проектiв, облiк запитiв стейкхолдерiв, функцiя корисностi, нечiтка модель UDC 65.
The paper proposes a modified fuzzy model for selection of the most appropriate types of engagement strategies of the organization with its different stakeholders. The decision to choose one or another type of strategy is based on fuzzy weighting factors of applicability of the strategies considered as random variables for the most probable scenarios using a fuzzy generalized criterion that combines mathematical expectation and standard deviation. The principal difference of the model from the previously developed ones by the authors is that fuzzy weight factors of strategies applicability are not calculated by the given formulas but are determined on the basis of the given base of fuzzy inference rules. Herewith, when calculating the mathematical expectation and the standard deviation, the weighting factors of strategies applicability are not defuzzificated beforehand. Accordingly, the partial criteria, the generalized criterion, the level of risk tolerance of the decision-maker are fuzzy. In this case, the ranking of strategy types occurs on the basis of various methods for ordering fuzzy numbers.
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