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Оценивание модели с гауссовским мультиномиальным эндогенным переключением и неслучайным отбором
Прикладная эконометрика. 2022. № 3(67). С. 121–143.
We propose a two-step estimation procedure for multinomial endogenous switching model assuming joint normality of random errors. Simulated data analysis suggests that our method outperforms popular alternatives when independence of irrelevant alternatives (IIA) assumption is violated. We also apply our method to estimate marriage male premium. We have found statistical evidence that this premium is negative for officially married men and positive for unofficially married men.
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
Bessonova E., Popova S., Fedulova M., Emerging Markets Review 2026 Vol. 75 Article 101564
To mitigate the shocks caused by the pandemic-related restrictions, many governments implemented extensive support measures for companies facing sharp declines in revenues. In Russia, loan guarantee programmes allowed many firms to apply for loans during the pandemic. As a result, the number of small loans soared. Participation in the loan guarantee programmes helped firms in ...
Added: October 8, 2026
Kupavskii A., Noskov F., Forum of Mathematics, Sigma 2026 Vol. 14 Article 124
We call a family of $s$ sets $\{F_1, \ldots, F_s\}$ a sunflower with $s$ petals if, for any distinct $i, j \in [s]$, one has $F_i \cap F_j = \cap_{u = 1}^s F_u$. The set $C = \cap_{u = 1}^s F_u$ is called the {\it core} of the sunflower. It is a classical result of ...
Added: October 8, 2026
Potanin B., Statistics and Computing 2026 Vol. 36 Article 200
We propose double machine learning (DML) estimators for a partially linear model (PLM) with endogenous treatments and multivariate sample selection. We prove asymptotic normality of the estimators under mild regularity conditions and study finite sample properties on simulated data. The results demonstrate the importance of addressing sample selection in PLMs and the usefulness of the ...
Added: August 8, 2026
Оценивание эффектов воздействия на порядковые показатели в многомерных моделях упорядоченного выбора
Gergenreter A., Прикладная эконометрика 2026 № 1(81) С. 68–92
The current study examines the estimation of treatment effects on ordinal variables when the conditional independence assumption between the treatment variable and the outcome variable is violated. An extension of existing approaches is proposed through a parametric method based on a hierarchical system of ordered choice equations. The key methodological contribution involves deriving analytical formulas ...
Added: March 30, 2026
Deeva A., Applied Econometrics 2025 No. 4(80) P. 47–67
This paper investigates the influence of Body-Mass-Index (BMI) on the earnings of men and women. The aim is to identify weight — wage discrimination in the Russian labour market, which results in overweight and obese people earning significantly less than normal weight workers. The study is conducted using a panel dataset from the Russian Longitudinal ...
Added: October 2, 2025
Deeva A., Вопросы статистики 2025 Т. 32 № 1 С. 51–63
This paper examines the impact of Body Mass Index (BMI) on individual earnings. The study aims to determine whether there is weight–wage discrimination against individuals with higher BMI levels in the Russian labor market, resulting in lower wages, all other things being equal.
The distinctive feature of this study is that the author analyzed the ...
Added: April 7, 2025
Sofiia Dolgikh, Potanin B., Journal of Economic Studies 2026 Vol. 53 No. 1 P. 107–122
The purpose of this study is to empirically investigate gender differences in the returns to different levels of education and studying in STEM fields in Mexico. Specifically, we estimate the effects of education on employment and income. We use data about more than 4.5 m individuals in the year 2020 in Mexico to estimate the average ...
Added: January 31, 2025
Gergenreter A., Kossova E. V., Potanin B., Прикладная эконометрика 2024 Т. 76 № 4 С. 96–119
The research focuses on the investigation of birth cohort effects in post-month consumption of alcohol, cigarettes and marijuana. The authors utilize hierarchical and non-hierarchical multivariate probit models to examine the relationship between the consumption of addictive goods, taking into account the endogeneity of subjective health evaluation. Based on the US National Survey on Drug Use and Health from 2002 ...
Added: December 4, 2024
Sofiia Dolgikh, Potanin B., Journal of Economic Studies 2024 Vol. 51 No. 8 P. 1647–1663
Education system stimulates the development of human capital and provides informative signaling allowing to differentiate productivity of individuals. If education system is efficient then higher levels of education usually associated with greater returns on labor market. To evaluate the efficiency of Russian education system we aim to estimate the effect of vocational education and different ...
Added: April 8, 2024