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Monopolistic Competition: Beyond the Constant Elasticity of Substitution
Econometrica. 2012. Vol. 80. No. 6. P. 2765–2784.
We propose a model of monopolistic competition with additive preferences and variable marginal costs. Using the concept of "relative love for variety," we provide a full characterization of the free-entry equilibrium. When the relative love for variety increases with individual consumption, the market generates pro-competitive effects. When it decreases, the market mimics anti-competitive behavior. The constant elasticity of substitution is the only case in which all competitive effects are washed out. We also show that our results hold true when the economy involves several sectors, firms are heterogeneous, and preferences are given by the quadratic utility and the translog.
Bogatyrev R., Sandomirskaia M., / NRU Higher School of Economics. Series EC "Economics". 2026. No. 19(1).
This work develops a tractable model of price competition in fragmented markets where consumers consider both local and distant varieties, with cross-regional purchases subject to stochastic costs. Global competition and full localization emerge as polar cases; hybrid competition is not merely intermediate and exhibits distinctive features such as an endogenous price ceiling and non-monotonic entry ...
Added: June 11, 2026
Kravtsova M., Musaev A. U., Welzel C., / Series "SSRN Working Paper Series". 2026.
Elaborating on Welzel et al.'s "Cool Water Theory," our study zooms into the more limited (albeit still varied) framework conditions of Russia's huge territory. Within Russia's confines, we examine how the combination of moderately cool seasons with steady rain (i.e., Cool Water) affects sub-national areas' contemporary societal progress in two modernization indicators: material prosperity in ...
Added: June 3, 2026
Синяков А. А., Зверева В., Шелованова Т. И., / Центральный банк Российской Федерации. Серия 132 / 2024 "Серия докладов об экономических исследованиях". 2024. № 132.
At the end of 2023, Russia updated its Strategy for Improving Financial Literacy and Developing Financial Culture Until 2030. Unlike the previous strategy, the current strategic goals include not only financial literacy but also financial culture. ‘Culture’ is normative and socially preferred behaviour. The updated strategy brings into focus the relationship between financial literacy and responsible financial behaviour. To explore this relationship, the authors rely on data from the All-Russian Survey of Consumer Finance (2020 and 2022). Socially ...
Added: June 1, 2026
Vorchik A., / SSRN. Серия Social Science Research Network "Social Science Research Network". 2026.
This work is devoted to a theoretical explanation of the Easterlin paradox, according to which long-term economic growth does not make average level of people's happiness increasing. By happiness, we mean the intensity of emotions people experience while comparing their new income with its expected value, or the target income with its original value. In the first case, ...
Added: May 31, 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
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
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
Limonov L. E., Batchaev A., Zaostrovtsev A. P. et al., М.: Юрайт, 2023.
Курс "Теория региональной экономики и пространственного развития" является частью базового курса "Региональная экономика и экономическая география", в которую включено рассмотрение теорий, моделей, методов региональной экономики и пространственного развития. В курсе подробно и системно освещены достижения пространственной экономики, включая новую экономическую географию и ее эмпирические приложения, рассмотрены модификации и приложения базовых макро- и микроэкономических теорий к ...
Added: February 1, 2024
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
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
Goryunov M., Sergey Kokovin, Tabuchi T., Economic Theory 2021 Vol. 74 No. 3 P. 793–832
Our novel approach enriches the general additive monopolistic competition model with a space of product characteristics: consumers’ “ideal varieties”. This paper bridges two traditions in modelling markets with horizontal product differentiation: the Hotelling’s (Econ J 39(153):41–57, 1929) “address economy” and Chamberlinian Dixit–Stiglitz monopolistic competition. Unlike Hotelling, our partially localised competition involves intersecting zones of service among producers. ...
Added: November 18, 2021
Chermoshentsev E., Финансы и бизнес 2020 Т. 16 № 4 С. 97–110
We analyses strategic interactions among developers in Saint Petersburg and region. Despite strong theoretical evidences to be strategic market, there are no strategic interactions among firms, so the market exhibits monopolistic competition pattern. However, the situation is reversed after legislations changes that severs regulations and financial constraints for developer. Market now shows that prices are ...
Added: April 14, 2021
Rozanova N. M., Общественные науки и современность 2021 № 1 С. 63–72
Patterns for competitive and monopoly behaviour, market power configurations and instruments of interfirm relationships are under radical transformation in a digital era. There arise new forms of monopolistic strategies that aim at establishing, strengthening and withstanding long-term market power in various industries. Analysis of Russian and foreign economic investigations that was done in the article ...
Added: March 20, 2021
Vasily M. Goncharenko, Alexander B. Shapoval, Lipagina L., , in: Proceedings of the Conference on Modeling and Analysis of Complex Systems and Processes 2020 (MACSPro 2020)Vol. 2795.: CEUR Workshop Proceedings, 2020. P. 108–116.
We consider a general equilibrium model in a multisector economy with 𝑛 high-tech sectors where singleproduct firms compete monopolistically producing a differentiated good. Homogeneous sector is characterized by perfect competition. Workers attempt to find a job in high-tech sectors because of higher wages. However, it is possible for them to remain unemployed. Wages of employees ...
Added: January 13, 2021