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Price competition in product variety networks
Ushchev P., Zenou Y.
We develop a product-differentiated model where the product space is a network defined as a set of varieties (nodes) linked by their degrees of substitutabilities (edges). In this network, we also locate consumers so that the location of each consumer (node) corresponds to her "ideal" variety. We show that there exists a unique Nash equilibrium in the price game among firms. Equilibrium prices are determined by firms' weighted Bonacich centralities and the average willingness to pay across consumers. They both hinge on the network structure of the firm-product space. We also investigate how local product differentiation and the spatial discount factor affect the equilibrium prices. We show that these effects non-trivially depend on the network structure. In particular, we find that, in a star-shaped network, the firm located in the star node does not always enjoy higher monopoly power than the peripheral firms.
Гайворонская Е. А., Терещенко Д. С., Прикладная эконометрика 2026 № 1(81) С. 93–116
This paper presents an empirical analysis of spatial competition among major retail chains in the grocery markets of Moscow and St. Petersburg. Using an ordered probit model and spatial data, the determinants of entry and exit decisions in local markets are examined. The results reveal the predominance of the motive to avoid cannibalization: the probability ...
Added: April 8, 2026
Ustyuzhanin V., / Series Econometrics "arxiv". 2026.
This paper proposes Covariate-Balanced Weighted Stacked Difference-in-Differences (CBWSDID), a design-based extension of weighted stacked DID for settings in which untreated trends may be conditionally rather than unconditionally parallel. The estimator separates within-subexperiment design adjustment from across-subexperiment aggregation: matching or weighting improves treated-control comparability within each stacked subexperiment, while the corrective stacked weights of Wing et ...
Added: April 3, 2026
Smirnov A., AlterEconomics (ранее - Журнал экономической теории) 2024 Т. 21 № 2 С. 286–301
Interregional migration in Russia surpasses both intraregional and international migration in volume, playing a pivotal role in redistributing human capital across the country. To capture migration patterns between regions comprehensively, it is crucial to analyze all migration flows rather than just final migration indicators. This study integrates two research fields: network science, which examines various ...
Added: March 18, 2026
Vorchik A., / Social Science Research Network. Серия SSRN Working Paper Series "SSRN Working Paper Series". 2026.
This article is devoted to the phenomenon of intrinsic motivation, to understand which two models are proposed. We study how positive/negative intrinsic motivation to work (experienced utility) affects worker's individual labour supply (model I) and the amount of effort they exert (model II). In model I, we use intrinsic motivation to explain the positive/negative slope ...
Added: March 15, 2026
Vorchik A., Мамышев М. А., / Series Social Science Research Network "Social Science Research Network". 2025.
In this paper, we develop a formal mathematical model aimed to explain the Dunning-Kruger effect that beginners systematically overestimate their own competence in various fields of knowledge and activity. We argue that the Dunning-Kruger effect arises from the emotional nature of confidence combined with unknown unknowns that it simply can not take into account due ...
Added: February 11, 2026
Musaev A. U., Vorchik A., / Series Social Science Research Network "Social Science Research Network". 2026.
This paper attempts to model the evolutionary theory of modernization and democratization. The model reflects the key provisions of R. Inglehart and C. Welzel's theory and provides a microfoundation for the adaptation of subjective values to the objective importances of the survival factors and the structure of the labour markets from the perspective of evolutionary ...
Added: February 10, 2026
Antsygina A., Teteryatnikova M., Tremewan J. C. et al., / Series "SSRN Working Paper Series". 2025.
Many competitive environments allow for a third party to be indirectly involved by supporting one or both sides in the conflict. Such support can come from trade partners, colleagues, or allies, who can in turn benefit from a supported party's success. We use theory and an experiment to investigate how support relationships develop endogenously in ...
Added: January 31, 2026
Akhmedova A., / Series "SSRN Working Paper Series". 2026.
The study explores a psychological phenomenon of inaction inertia-avoiding action after missing a more favourable opportunity. Unlike action inertia (e.g.,sunk costs effect), inaction inertia has been less studied, particularly in economic contexts. Considering the reference dependent nature of the phenomenon, I build on the work of Kőszegi and Rabin (2006) to examine how past experiences ...
Added: January 23, 2026
Kuchumova (Paramonova) Y. A., Ozhegova A., Зорина К. С., / Series SSRN "Available at SSRN 6108727". 2026.
Simplified tax regimes with explicit eligibility thresholds are a common tool which reduces tax burden but distorts firms’ behavior, creating local bunching just below the threshold. However, we show that when firms have access to business splitting their responses extend far beyond the local margin. Our model demonstrates that splitting reduces local bunching but amplifies ...
Added: January 21, 2026
Kuchumova (Paramonova) Y. A., Кумачева С. Ш., / Series SSRN "Available at SSRN 5312100". 2025.
In recent years, an emerging body of empirical research has shown that tax audits, in addition to recovering unpaid taxes (direct effect), increase future tax compliance (indirect or dynamic effect). This literature also suggests that updating expectations induced by audit experience plays an important role in explaining this indirect effect. However, exactly how taxpayers form ...
Added: January 21, 2026
Kuchumova (Paramonova) Y. A., / Series SSRN "Available at SSRN 5277500". 2025.
While the emerging empirical literature shows that collateral tax sanctions (CTSs) - such as driver’s license suspensions or passport denials - appear to be effective instruments to enforce tax debt collection, there are still few theoretical arguments to explain why. In this paper, I model enforcement of tax debt collection and provide a new rationale for why it could ...
Added: January 21, 2026
Dobrynskaya V. V., Tomtosov A., Речмедина С., / NRU HSE. Series WP BRP 60/FE/2017 "SERIES: FINANCIAL ECONOMICS". 2025.
We study the application of factor investing in the market for real estate (REITs). The analysis of traditional factor strategies, such as momentum, value, size and profitability, reveals their unstable and atypical behavior in comparison to the equity market, however, there is a strong momentum effect in the factor strategies. We propose a new dynamic ...
Added: January 21, 2026
Besstremyannaya G., Bakshuk M., / ЦЭМИ РАН. Серия 48 заседание "Сборник трудов Шаталинской школы-семинара". 2026.
В данной статье рассматривается реакция российских предприятий обрабатывающей промышленности на ужесточение экономических санкций с акцентом на период после 2022 года. Хотя санкции в целом негативно сказываются на экономическом росте и эффективности деятельности компаний, есть некоторые свидетельства того, что они также могут подталкивать компании к инновациям, а негативный эффект преодолевается при помощи адаптации компании. Исследование заполняет ...
Added: December 31, 2025
Besstremyannaya G., Новикова В., / ЦЭМИ РАН. Серия 48 заседание "Сборник трудов Шаталинской школы-семинара". 2026.
Защита прав интеллектуальной собственности является движущей
силой для формирования стимулов инновационной активности
предприятий. Законодательное закрепление правил пользования
результатами интеллектуальной деятельности и обеспечение их соблюдения
позволяет поддерживать баланс интересов создателей и пользователей
интеллектуальной
собственности.
Целью
проанализировать недостаточно изученную для регионов России связь
между экономическим ростом и защитой прав интеллектуальной
собственности с использованием двухшаговой регрессии. Результаты
моделирования оказались неоднозначными, однако, было доказано наличие
значимой связи между защитой прав интеллектуальной ...
Added: December 31, 2025
Meissner D., Salati Marcondes de Moraes G. H., Brandão Fischer B. et al., / NRU Higher School of Economics. Series WP BRP "Science, Technology and Innovation". 2025. No. WP BRP /STI/2025.
Innovation has long been at the center of debates in economics, management, and organizational studies. However, innovation is never free of uncertainty and risk. Every act of innovation implies a departure from established paths and a willingness to embrace the unknown. From the beginning it's never clear if there is an audience which appreciates the ...
Added: November 28, 2025
Shchiptsova A., Obersteiner M., / Series General Economics "arxiv.org". 2025.
The addition of phosphorus, in the form of mineral fertilizer, becomes necessary in most agricultural soils in order to achieve consistent high yield levels of intensive farming and maintain soil fertility. Recent consolidation of phosphate fertilizer industry has transformed fragmented trade into a single integrated global network, where a small group of large-scale companies dominates ...
Added: November 21, 2025
Springer, 2025.
This book contains best selected research papers presented at ICTCS 2024: Ninth International Conference on Information and Communication Technology for Competitive Strategies. The conference will be held in Jaipur, India during 19 – 21 December 2024. The book covers state-of-the-art as well as emerging topics pertaining to ICT and effective strategies for its implementation for ...
Added: September 8, 2025
Slepov F., Kokovin S. G., Economic Theory 2025
We revisit Krugman’s (J Int Econ 9(4):469–479, 1979.) classical trade model in its general form with several asymmetric countries and unspecified additive utility functions. We present the weakest known conditions on utilities sufficient for the existence of equilibrium. These conditions are also necessary under symmetric preferences. Using the same method for Bertoletti and Etro’s (Econ ...
Added: May 5, 2025
Slepov Fedor, Kokovin S. G., / Series WP BRP "Basic research program". 2023. No. 262/EC/2023.
This paper develops a modeling technique of “attainable profit” functions, applying it to two models of monopolistic competition. First, it revisits the Krugman's classical trade model in the most general form: several asymmetric countries and non-specified additive utility functions. We establish the weakest conditions on utilities, sufficient for the existence of equilibria. These conditions are ...
Added: December 19, 2023
Mukosey A., Semenov A., Tretiakov A., Journal of Parallel and Distributed Computing 2024 Vol. 183 Article 104765
Several approaches and techniques exist to resolve load balancing problem in general and torus topology networks. Graph methods are natural ways to perform balancing of routing paths. A routing balancing algorithm must operate within the constraints of the underlying network architecture that limits several parameters, such as the number of logical paths in the network. In this paper, we consider a ...
Added: November 25, 2023
Schieber T., Carpi L., Pardalos P. M. et al., Nature Communications 2023 Vol. 14 No. 1 Article 2217
Understanding diffusive processes in networks is a significant challenge in complexity science. Networks possess a diffusive potential that depends on their topological configuration, but diffusion also relies on the process and initial conditions. This article presents Diffusion Capacity, a concept that measures a node’s potential to diffuse information based on a distance distribution that considers ...
Added: April 26, 2023
Sergey Kokovin, Pavel Molchanov, Bykadorov I., Journal of International Economics 2022 Vol. 137 Article 103595
We study the canonical Krugman (1979) trade model with non-CES preferences that yield autarky at finite trade costs. We prove a non-monotone impact of gradual trade liberalization. At first, near autarky, emerging trade reduces world welfare, while at free trade it becomes large enough to be beneficial (Krugman's result). This non-monotonicity persists under heterogenous firms. ...
Added: January 23, 2023
Karamysheva M., Seregina E., Journal of International Money and Finance 2022 Vol. 127 Article 102696
The impact of prudential policies in open economies depends on their intrinsic efficacy and the spillovers from the close financial partners. Using a sample of advanced economies, we find that prudential policy interventions significantly reduce systemic risk in the financial systems with the impact amplified through a network of financial investment links. Using the Spatial ...
Added: July 15, 2022
Mikhaylova O., Dokuka S., Frontiers in Psychology 2022 Vol. 13 Article 848774
Added: March 16, 2022