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Floor Prices for Spatially Distributed Markets
Operational Research. 2025. Vol. 25. Article 13.
We consider a spatially distributed market of a homogeneous good with different types of constraints on the flows between producers and consumers. Motivated by applied market research, we are interested in what we call minimum and maximum floor prices, i.e. the minimum and maximum prices that support the distribution of a good under certain rationality conditions for producers. These prices can be interpreted as the ones ensuing the stable functioning of the market and are of great interest for market analysts. In this paper, we establish several properties of minimum and maximum floor prices. We propose algorithms computing them and prove the finiteness of these algorithms under certain conditions.
Language:
English
Kazakov A., Koryakin V., Safonov K. et al., Journal of Differential Equations 2026 Vol. 480 Article 114626
We study a family of one-dimensional maps that models the dynamics of a system of differential equations with a Lorenz attractor near a bifurcation curve where the system has a pair of homoclinic loops with zero separatrix value. Of particular interest is the region of the parameter plane where the map has a robust chaotic ...
Added: September 16, 2026
М.: Московский Политех, 2026.
Основной целью конференции является освещение проблем, связанных с внедрением технологий искусственного интеллекта в управление городским хозяйством города Москвы. Участниками были представлены инновационные решения для оптимизации использования ресурсов и городской инфраструктуры. Особое внимание было уделено решению задач прогнозирования и аналитического моделирования для повышения эффективности работы городских систем.
Тезисы докладов содержат разностороннее исследование теоретических и практических вопросов развития ...
Added: September 16, 2026
Abdullaev A., Sivaev S., Regional Research of Russia 2026 Vol. 16 No. 3 P. 518–530
The article examines the specific features of implementing regional programs of targeted social support for housing and communal services payments in Russia. The aim of the study is to identify differences between the federal subjects in key parameters of the program, targeting and coverage of households with housing subsidies, as well as in the results of ...
Added: September 16, 2026
Letellier C., Stankevich N., Houri S. et al., Chaos 2026 Vol. 36 No. 9 Article 093128
Toroidal chaos designates a chaotic solution that is structured in the neighborhood of a torus. For being chaotic, such a torus needs to be discontinuously fractalized to present a Cantor set, ensuring the great sensitivity to initial conditions required for chaos. A fractal is related to self-similarity and a non-integer dimension. In fact, although clearly ...
Added: September 16, 2026
Poddiakov A., / Series Social Science Research Network "Social Science Research Network". 2026. No. 7437658.
Clarity of knowledge and reasoning is necessary in many cases. Yet vagueness in scientific thinking related to surprise, curiosity, "ability to engage with not-knowing" (de Freitas) and abductive reasoning is also a crucially important source of scientific creativity which supplements combinatorial logic when dealing with the already known. Starting from studies by C. S. Peirce ...
Added: September 15, 2026
Gokhberg L., Abdrakhmanova G., Kutsenko E. et al., Вопросы статистики 2026 Т. 33 № 4 С. 5–20
This article examines the methodological and practical issues associated with the transition to the new edition of the All-Russian Classifier of Economic Activities (OKVED) – OKVED3. The relevance of the study stems from the need to reflect contemporary structural changes in the economy, related to the transformation of the existing economic activities and emergence of ...
Added: September 15, 2026
Makarov I. A., Россия в глобальной политике 2026 Т. 24 № 4 (140) С. 164–182
Три с половиной года остаётся до 2030-го – окончания срока реализации Целей устойчивого развития (ЦУР) – главной международной инициативы, устанавливающей долгосрочные ориентиры для будущего человечества. Уже очевидно, что она провалилась: преодоление бедности, решение экологических проблем и построение инклюзивного и справедливого общества остались красивой мечтой. Кто-то может воспринимать ЦУР как памятник человеческой наивности. Но надо понимать, что эта ...
Added: September 14, 2026
Fedorova E., Ledyaeva S., Stepanov V., International Review of Economics and Finance 2026
This study investigates the influence of low-quality information, specifically fake news, on short
term stock returns, contributing to the discourse on signal theory and behavioral economics.
Employing a machine learning approach, the authors developed a robust fake news dataset from
publicly available sources. Sentiment analysis was conducted using a FinBERT model fine-tuned
for stock market contexts, alongside extensive dataset ...
Added: September 12, 2026
Смирнов С. В., Миллионщиков Д. В., Уфимский математический журнал 2021 Т. 13 № 2 С. 44–73
В данной работе изучаются характеристические алгебры для систем экспоненциального типа, соответствующих вырожденным матрицам Картана. Эти системы обобщают хорошо известные в теории интегрируемых систем гиперболические уравнения синус-Гордон и Цицейки. Для таких систем, соответствующих матрицам Картана ранга 2, характеристические алгебры описаны явно в терминах образующих и соотношений, и доказано, что они имеют линейный рост. Исследуется связь между ...
Added: September 11, 2026
Смирнов С. В., Glasgow Mathematical Journal 2026 Vol. 68 No. 2 P. 299–316
In the second half of the 19th century Darboux obtained determinant formulae that provide the general solution for a linear hyperbolic second order PDE with finite Laplace series. These formulae played an important role in his study of the theory of surfaces and, in particular, in the theory of conjugate nets. During the last three ...
Added: September 11, 2026
Смирнов С. В., Journal of Physics A: Mathematical and Theoretical 2023 Vol. 56 No. 26 Article 265204
There are different methods of discretizing integrable systems. We consider semi-discrete analog of two-dimensional Toda lattices associated to the Cartan matrices of simple Lie algebras that was proposed by Habibullin in 2011. This discretization is based on the notion of Darboux integrability. Generalized Toda lattices are known to be Darboux integrable in the continuous case ...
Added: September 11, 2026
Enatskaya N., Труды Карельского научного центра РАН. Серия 10: Математическое моделирование и информационные технологии 2026 № 6 С. 132–138
In schemes S for placing r particles in n distinguishable cells, their placement in selected m cells – schemes S∗ is studied, for which the analysis is carried out by a new enumerative method (EM) in extended areas of enumerative combinatorics: finding the number of outcomes and, based on the construction of a model of ...
Added: September 11, 2026
Enatskaya N., Труды Карельского научного центра РАН. Серия 10: Математическое моделирование и информационные технологии 2026 № 6 С. 139–147
The class of particle cell arrangements under consideration is characterized by the introduction of an upper limit on the filling levels of the cells, which must be achieved in at least one cell of each outcome of each arrangement. The circuits are distinguished by the paired qualities of their constituent elements (cells and particles) according ...
Added: September 11, 2026
Дегтерева Е. А., Biryukova O. V., Сабанцев А. И., Вестник МГИМО Университета 2026 Т. 19 № 2 С. 149–171
Abstract: This article examines the role of the International North–South Transport Corridor (INSTC) in the reorientation of Russia’s foreign trade flows toward the countries of the Global South. In the context of sanctions pressure, geopolitical fragmentation, and the restructuring of traditional logistics chains, the INSTC has acquired strategic importance as an alternative transport artery linking ...
Added: May 8, 2026
Красноярск: Издательство Красноярского государственного аграрного университета, 2025.
The articles of the conference participants on current issues of logistics and supply
chain management are presented. The theoretical and methodological aspects of the development of logistics systems at enterprises and in the agro-industrial complex are described, the issues of the application of virtual technologies, management of territorial
logistics systems, cross-cultural and innovative management are covered. The ...
Added: April 29, 2026
Dybskaya V., Sergeyev V., Логистика 2025 № 4 С. 16–22
The content of the blockchain concept (technology) in relation to supply chain management and logistics is disclosed. The evolution of blockchain technology is shown: advanced blockchain, complex and advanced solutions using blockchain. The main areas of application and characteristics of the problems of the blockchain application in the USP are considered. The key risks and ...
Added: April 29, 2026
Dybskaya V., Sergeyev V., РИСК: Ресурсы, информация, снабжение, конкуренция 2025 № 2 С. 11–17
The origins and importance of supply chain management (SCM) in the modern economy are analyzed. It is shown that the USP is a continuation and development of the concept of integrated business logistics. The evolution of logistics from the 1960s to the 2000s is presented. The main functionality of the ADC for business organizations is ...
Added: April 28, 2026
Strimovskaya A., Leevik Y., Старчак А. В., В кн.: Практики менеджмента в российских компаниях. Том 3Т. 3.: М.: Издательский дом НИУ ВШЭ, 2025. С. 115–124.
The expansion of chain retail companies into regional markets has long been a global trend. This creates additional challenges for traditional distributors in business management. This case study examines OOO Enikom, a wholesaler. The management of OOO Enikom understands that, in the face of rising inflation and increasing competition, it is necessary to reconsider the ...
Added: February 23, 2026
Штефан А. Н., Шмелева Н. В., Богатырев А. В. et al., Конкурентоспособность в глобальном мире: экономика, наука, технологии 2024 № 12 С. 419–423
One of the key trends in global economic development is the process of digitalization, part of which is digital platforms and ecosystems, which are becoming one of the drivers of innovation activity, as well as a system-forming element of the next economic mode. In particular, this trend is dynamically developing in logistics. The article considers ...
Added: February 21, 2026
СПб.: Изд-во ГУМРФ им. адм. С. О. Макарова, 2025.
Сборник материалов конференции посвящен вопросам логистики. Рассматриваются теоретические аспекты логистики, вопросы практического применения логистических принципов, преподавания логистики в высших учебных заведениях. Издание предназначено для преподавателей вузов, для специалистов, чья деятельность связана с логистикой, и для всех интересующихся этой проблематикой. ...
Added: February 16, 2026
Strimovskaya A., Рюмкина К. А., Преснякова О. Н., π-Economy 2024 Т. 17 № 6 С. 79–93
В условиях глобализации экономики и одновременно растущего числа санкций вопросы управления ключевыми бизнес-процессами, экспортными операциями и логистикой в целом становятся особенно актуальными для отечественных предприятий. При этом для управления разного уровня подзадачи и методы их решения отличаются. Логистика как инструмент повышения конкурентоспособности предприятий заслуживает особого внимания с точки зрения не только повышения эффективности бизнес-процессов и сокращения затрат, но и снижения антропогенного влияния на окружающую среду. Цифровизация логистической ...
Added: January 16, 2026
Khataei D., Юго-Восточная Азия: актуальные проблемы развития 2025 Т. 3 № 3(68) С. 322–334
The article examines Iran’s first “pivot to ASEAN” in 1997–1999, when Tehran sought to establish a strategic presence in Southeast Asia. It analyzes the reasons behind this course, including the breakdown of relations with Europe after the Mykonos trial, U.S. sanctions, and the search for new foreign policy directions. The pivot unfolded in two phases: ...
Added: September 14, 2025
Zekhov M. S., Pilnik N., Radionov S., Проблемы прогнозирования 2025 № 5(212) С. 47–60
The article quantifies the impact of tariff policy measures on the global markets of phosphorus containing mineral fertilizers—monoammonium phosphate (MAP) and diammonium phosphate (DAP). The analysis employs a mathematical model of spatially distributed markets based on the concept of economic equilibrium. The model takes into account production capacities and costs of producers, demand volumes of ...
Added: May 6, 2025
Zekhov M. S., Pilnik N., Radionov S., Журнал Новой экономической ассоциации 2025 № 2(67) С. 25–44
The article discusses the generalization of a distributed market model that describes the distribution of production volumes, sales, and prices in geographically distant markets. The interaction of agents in the model is described in terms of economic equilibrium, where agents solve their optimization problems, and their decisions must be concerted. Producers in the model are ...
Added: May 6, 2025