Dorovskiy A., / Series arXiv "math". 2026.
In this paper the structural stability of generic families of vector fields of the PC-HC class on the two-dimensional sphere is proved. A classification of these families up to moderate equivalence in neighborhoods of their large bifurcation supports is presented, based on such invariants as the configuration and the characteristic set. The realization lemma is proved. ...
Added: May 14, 2026
Taletskii D., / Series arXiv "math". 2026.
A vertex subset of a graph is called a \textit{distance-$k$ independent set} if the distance between any two of its distinct vertices is at least $k + 1$. For all $n,k \geq 1$, we determine the minimum possible number of inclusion-wise maximal distance-$k$ independent sets among all $n$-vertex trees. It equals~$n$ if $n \leq k ...
Added: May 1, 2026
Ovcharenko M., / Series arXiv "math". 2026.
We introduce an explicit class of tempered Laurent polynomials in the sense of Villegas and Doran--Kerr in n⩽4 variables including all Landau--Ginzburg models for smooth Fano threefolds with very ample anticanonical class. We check that it contains Landau--Ginzburg models for various Fano fourfolds which are complete intersections in smooth toric varieties and Grassmannians of planes, ...
Added: April 30, 2026
Zlotnik Alexander, / Series arXiv "math". 2026. No. 2602.03481v1.
We deal with the global in time weak solutions to the 1D compressible Navier-Stokes system of equations for large discontinuous initial data and nonhomogeneous boundary conditions of three standard types. We prove the Lipschitz-type continuous dependence of the solution $(\eta,u,\theta)$, in a norm slightly stronger than $L^{2,\infty}(Q)\times L^2(Q)\times L^2(Q)$, on the initial data $(\eta^0,u^0,e^0)$ in a ...
Added: April 18, 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
Medvedev V., / Series arXiv "math". 2026.
We investigate the interplay between the dimension of the space of static potentials and the geometric and topological structure of the underlying static three-manifold. A partial classification of boundaryless static manifolds is obtained in terms of this dimension. We also treat the case of static manifolds with boundary. In particular, we prove that if a ...
Added: April 3, 2026
Gabdullin N., Androsov I., / Series Computer Science "arxiv.org". 2026.
Label prediction in neural networks (NNs) has O(n) complexity proportional to the number of classes. This holds true for classification using fully connected layers and cosine similarity with some set of class prototypes. In this paper we show that if NN latent space (LS) geometry is known and possesses specific properties, label prediction complexity can ...
Added: April 2, 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
Kolesnikov A., / Series arXiv "math". 2025.
We study Blaschke--Santal{ó}-type inequalities for N>=2 sets (functions) and a special class of cost functions. In particular, we prove new results about reduction of the maximization problem for the Blaschke--Santal{ó}-type functional to homogeneous case (functional inequalities on the sphere) and extend the symmetrization argument to the case of N>2 sets.
We also discuss links to the ...
Added: February 13, 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
Kapeliushnikov R., / Высшая школа экономики. Серия WP3 "Проблемы рынка труда". 2024. № WP3/2024/01.
The history of economic thought knows a few of heated methodological controversies (Methodenstreit), the most famous of which was a “battle” at the end of the 19th century between Austrian and New historical schools on proper methods of social sciences. Later at the turn of the 1930–1940s a dispute arose between J.M. Keynes, on the one ...
Added: December 18, 2024
Kapeliushnikov R., Вопросы экономики 2024 № 11 С. 120–147
История экономической мысли знает немало острых методологических споров (Methodenstreit), самым знаменитым из которых можно считать интеллектуальную схватку в конце XIX в. между представителями австрийской и новой исторической школ по вопросу о методах социальных наук. Уже в XX в. на рубеже 1930—1940-х годов не менее жесткий спор возник между Дж. М. Кейнсом и кейнсианцами, радикально разошедшимися ...
Added: December 18, 2024
М.: ЦЭМИ РАН, 2024.
Конференция «Многомерный статистический анализ, эконометрика и моделирование реальных процессов» проводится с 1979 года раз в четыре года. Она стала традиционной и неотъемлемой чертой научной жизни России и Армении. Часто участников конференции умело и радушно принимала гостеприимная Армения в одном из красивейших своих уголков — поселке Цахкадзор (в переводе на русский — «Долина цветов»). XI-я конференция, посвященная 90–летию ...
Added: August 8, 2024
Anastasia Sherubneva, Regional Science Policy & Practice 2024 Vol. 16 No. 7 Article 100065
The COVID-19 pandemic was one of the biggest global crises of the 21st century, affecting all economic sectors, and Russia was no exception. Russian researchers have shown that the losses from the pandemic varied widely across sectors and regions: the service sector and large cities with high population density suffered the most. However, spatial and ...
Added: July 10, 2024
Pashkov S., Экономическая социология 2024 Т. 25 № 3 С. 183–212
The review is devoted to the discussion around research on consumer expectations, with a focus on methodological features and current problems of measuring the Consumer Sentiment Index (CSI) in the scope of sociology. The need to discuss the role of non-economic factors in the formation of consumer expectations is substantiated sociological (socio-demographic) foundations, the influence ...
Added: June 17, 2024
Borzykh D., Издательская группа URSS, 2024.
Книга представляет собой первую часть комплекта учебных пособий под
общим названием «Введение в эконометрику». Данные пособия рассчитаны на
студентов бакалавриата экономических факультетов университетов. Также они
могут быть использованы в магистратуре при повторении бакалаврского курса.
Особенностью книг является подача теории через разбор достаточного количества
примеров разной сложности.
Книга предназначена для изучения и повторения следующих разделов, необходимых при изучении эконометрики:
1) оперирование со знаком ...
Added: May 3, 2024
Borzykh D., Vakulenko E., Furmanov K. K., М.: Издательская группа URSS, 2024.
Преподавание эконометрики в части практических занятий должно базироваться на трёх китах:
решение задач «вручную», программирование эконометрических процедур, работа с данными на компьютере. Эта книга посвящена третьему «киту».
Пособие подготовлено на основе практических занятий по эконометрике, которые авторы проводили более десяти лет на различных факультетах НИУ ВШЭ. Оно предназначено, в основном, для студентов бакалавриата, обучающихся по экономическим специальностям, а также преподавателей эконометрики. ...
Added: January 10, 2024
Vladimir B., Вестник МГИМО Университета 2023 Т. 16 № 5 С. 155–188
The last decade has seen an increasing focus on the involvement of the private sector in international sustainable development, particularly in high-risk jurisdictions. This involvement encompasses a broad spectrum, incorporating innovative private sector instruments—now acknowledged as ODA-eligible by the OECD—as well as traditional tools of external official support to developing countries, which remain the primary ...
Added: November 14, 2023