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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
Mozias P., Социальные и гуманитарные науки. Отечественная и зарубежная литература. Серия 9: Востоковедение и африканистика 2026 № 3 С. 197–223
Abstract. Long-standing differences in development levels between China’s coastal and inland provinces intensified during the 1980s–1990s, at the early stages of market reforms. In response, from the late 1990s the Сentral government began implementing major development initiatives such as the “Go West”, the “Revitalization of the Northeast,” and the “Rise of Central China,” while in ...
Added: October 15, 2026
Aleksei Samarin, Nazarenko A., Nazarenko D. et al., Machine Learning and Knowledge Extraction 2026 Vol. 8 No. 10 Article 330
Automated microscopic image analysis is essential for quantitative microbiology, yet manual acquisition and generic recognition models struggle with morphological variability and scene artifacts. We address both ends of this pipeline. First, we present a low-cost, open-source acquisition system, based on an Arduino UNO R3 microcontroller and NEMA 17 stepper motors, that automates focusing, magnification, and ...
Added: October 14, 2026
Lukinskiy V., Lukinsky V., Sokolov B. et al., Annual Reviews in Control 2026 No. 62 P. 1–15
Enterprises planning material requirements must account for multiple sources of uncertainty. Considering the impact of yield uncertainty is of prime importance to decision-makers. To mitigate the effects of random yield on the continuity of manufacturing operations, we propose establishing a reserve stock to prevent shortages due to defective items within safety stock levels. If no ...
Added: October 14, 2026
Vukovic N., Krivokhizhin O., Антонова В. Д., АПК: Экономика, управление 2026 № 8 С. 89–95
One of the key roles is given to the agro-industrial complex in the global agenda of sustainable development. The leaders of the sustainable development of the agro-industrial complex identify the main trends and set standards for responsible business conduct in the industry. This article is devoted to the analysis of the leaders of responsible business ...
Added: October 14, 2026
Parkhomenko V., Kulikova S., Buzmakov A. V., Lobachevskii Journal of Mathematics 2026 Vol. 47 No. 6 P. 2979–2992
The stability of formal concepts and its generalization as robustness are considered in the paper. We use an approximation of stability in the form of Δ-measure for fast calculations. A computationally efficient method for calculating robustness based on subcontexts is presented. We also present a new method to analytically evaluate the number of preimages for ...
Added: October 14, 2026
Kuznetsov A. P., Sedova Y. V., Sataev I. R. et al., Mathematics and Computers in Simulation 2027 Vol. 2 P. 574–592
Universal bifurcation structures on the parameter plane of nonlinear systems, known as shrimps, are discussed. An overview of numerous examples from various fields of science is given. Shrimps are typical for both maps of different dimensions and flows. The varieties of shrimp are discussed and relevant examples are given. The similarity property on the parameter ...
Added: October 14, 2026
Kim J., Lee K., Industrial and Corporate Change 2026 Vol. 35 No. 5 P. 1122–1152
This study represents one of the first attempts to develop a global typology of regional innovation systems (RIS) across both advanced and catching-up economies, identifying distinct pathways for regional technological catch-up. Utilizing United States Patent and Trademark Office (USPTO) patent citation data from 33 regions worldwide over the period 2000–2017, we construct several RIS indicators, ...
Added: October 13, 2026
Xu S., Yu H., Ren T. et al., Journal of Knowledge Management 2025 Vol. 29 No. 10 P. 3410–3436
Purpose
This study aims to investigate the role of knowledge management in enhancing urban innovation within the context of smart cities, with a particular emphasis on the function of future communities as foundational units of knowledge-driven development. It aims to distinguish the respective contributions of knowledge acquisition and knowledge sharing as input mechanisms, while examining the ...
Added: October 13, 2026
Gusein-Zade S., Campillo A., Delgado F., Mathematische Zeitschrift 2026 Vol. 314 No. 1 P. 1–22
For a subfield $\K$ of the field $\C$ of complex numbers, we consider curve and divisorial valuations on the algebra $\K[[x,y]]$ of formal power series in two variables with the coefficients in $\K$. We compute the semigroup Poincar\'e series and the classical Poincar\'e series of a (discrete, rank one) valuation on it. ...
Added: October 13, 2026
Mishuris G., Meylan M. H., Pelinovsky E., Journal of Fluid Mechanics 2026 Vol. 1045 Article A4
In this paper, we revisit the classic problem of a wave field on a sloping beach of an arbitrary angle and propose a general approach that allows the computation of regular solutions of the problem regardless of the angle. We use the Mellin-transform technique, reducing the problem to singular integral equations with fixed-point singularities of ...
Added: October 12, 2026
Gusein-Zade S., М.: МЦНМО, 2026.
Книга содержит курс лекций по дифференциальной геометрии и топологии, читавшихся автором на механико-математическом факультете МГУ в разные годы. В дополнениях приводятся некоторые сюжеты (связности в расслоениях, теорема Фробениуса, производные Ли и др.), которые были включены в курс в отдельные годы либо содержались в аналогичных курсах лекций в Независимом московском университете.
Для студентов математических и физических специальностей. ...
Added: October 12, 2026
Veselova L. S., Азия и Африка сегодня 2026 № 9 С. 38–48
The article examines the consumer practices of China’s middle class in the context of the transformation of Confucian values under the influence of market reforms, urbanization, the expansion of the domestic market, and the state ideology of contemporary China. The focus is on how traditional norms of family responsibility retain their normative significance while being ...
Added: October 12, 2026
Nikulina Y., / Высшая школа экономики. Серия EC "Economics". 2026. № 1.
This paper estimates the impact of the international sanctions of 2014 and 2022, as well as the food embargo, on the technical efficiency of agricultural enterprises. The assessment was carried out using panel data from agricultural enterprises specializing in dairy production in the Leningrad Region for the period 2010–2023, employing stochastic frontier analysis. It is ...
Added: October 11, 2026
Fudan Journal of the Humanities and Social Sciences 2026
This study reassesses whether economic globalization is compatible with carbon mitigation across nine Shanghai Cooperation Organization economies over 1997 to 2024. A sequenced panel design is applied: pre-estimation diagnostics establish cross-sectional dependence, slope heterogeneity, and mixed integration orders; fixed effects with Driscoll and Kraay standard errors provides the preferred conditional mean estimate; Hansen threshold regression, ...
Added: October 11, 2026
Торговые ограничения как инструмент международного давления (на примере импортных поставок в Россию)
Biryukova O. V., США и Канада: экономика, политика, культура 2026 Т. 10 С. 37–50
The article examines the theoretical and practical aspects of the application of trade restrictions as a tool of international pressure using the case of import supplies to Russia. Special attention is paid to legal conflicts within the World Trade Organization (WTO) related to the application of national security exceptions (Article XXI of the GATT), and ...
Added: October 10, 2026
М.: НИЦ Инфра-М, 2026.
This textbook synthesizes modern concepts and approaches in the field of project management and is designed for use in project management courses. The material is based on the recommendations of the International Project Management Association (IPMA) and international standards ISO 21500 and ISO 21502.
It meets the requirements of the latest generation of federal state educational ...
Added: October 10, 2026
Брычков М. Е., Незнанов А.А., Программирование 2026 № 4 С. 50–66
The matrix profile (MP) quickly became one of the most important time series preprocessing methods when it was introduced in 2016, facilitating the solution of a wide range of time series analysis problems, in particular anomaly and pattern detection problems. The high significance has led to the emergence of various tools for MP calculating, but ...
Added: October 9, 2026
М.: Юрайт, 2026.
The Collection of Olympiad Problems (COP) in Probability Theory and Mathematical Statistics (PTMS) is offered as a teaching aid primarily for university students and faculty as a developmental supplementary resource, expanding the range of problems to be solved in lectures, seminars, and out-of-class independent work with students in various formats, including (as the title suggests) ...
Added: October 9, 2026
Aleskerov F. T., Вайншток А. П., Делахова А. М. et al., Информационные процессы 2026 Т. 26 № 3 С. 895–913
The development and effective management of territorial entities are priority issues for all states, particularly in the context of the digital transformation of public administration. Over the past decade, the integration of information technologies into municipal and regional planning has significantly altered approaches to strategic development, service delivery, and public engagement. This paper describes the ...
Added: October 9, 2026
Torres-Pérez I., Rosete A., Sosa Gómez G. et al., IFAC-PapersOnLine 2022 Vol. 55 No. 10 P. 2228–2233
Added: September 18, 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