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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.
Мухаметшин Р. И., Скрыпник Д. В., Экономическая политика 2026 Т. 21 № 4 С. 94–109
The study quantitatively assesses the impact of sanctions on the Russian economy from 2022 to 2024 by estimating the losses due to sanctions and identifying the factors that shaped GDP during this period. The assessment is based on a vector autoregressive model with exogenous variables (VARX). The model examines GDP and its key components: gross fixed ...
Added: September 27, 2026
Guterman A., Jonoska N., Kreines E. et al., Proceedings of the Edinburgh Mathematical Society 2026 Vol. 69 No. 3 P. 1041–1057
We provide four equivalent combinatorial conditions for a simple assembly graph (rigid vertex graph where all vertices are of degree 1 or 4) to have the largest number of Hamiltonian sets of polygonal paths relative to its size. These conditions serve to prove the conjecture that such a maximum, which is equal to 𝐹_(2𝑛+1) −1, ...
Added: September 27, 2026
М.: КДУ, 2026.
В сборник, подготовленный при финансовой поддержке Высшей школы современных социальных наук МГУ им М.В.Ломоносова, вошли статьи участников 2-й Международной научно-практической конференции «Современные проблемы управления: исследования, диагностика, решения», организованной высшей школой современных социальных наук МГУ им. М.В. Ломоносова 9-10 октября 2025 г. в Москве. Авторы статей, вошедших в сборник, являются как опытными исследователями в области менеджмента ...
Added: September 26, 2026
Reshetnikova K., Решетников А. К., Маркетинг в России и за рубежом 2025 № 4 С. 69–77
Tourism as an industry became prominent only in recent decades, however it plays an important role in soft power as a diplomacy tool that can shape an image of a country in order to attract visitors and boost its economy. In today's digital age, the Internet plays a key role in shaping travelers’ perceptions of ...
Added: September 26, 2026
Shishkina E., Современная математика. Фундаментальные направления 2026 Т. 72 № 1 С. 52–67
In this paper, we construct a weighted Sobolev space of fractional order based on the
generalized Bessel potential.We apply these results to the analysis of the singular fractional Schr¨odinger
equation. To solve the Cauchy problem for this equation, we prove an estimate that relates the norm of
the solution to the norm of the initial condition in the ...
Added: September 26, 2026
Shishkina E., Computational Mathematics and Mathematical Physics 2026 Vol. 66 No. 5 P. 804–815
This article demonstrates that the Laplace–Bessel operator generates a strongly continuous
semigroup on a weighted Lebesgue space. Using this semigroup, we define the fractional Laplace–
Bessel operator via Balakrishnan’s formula. Furthermore, we derive three distinct representations for
fractional powers of the negative Laplace–Bessel operator. ...
Added: September 26, 2026
Kolokoltsov V., Shishkina E., Journal of Theoretical Probability 2026 P. 39–83
In this paper, we introduce a new construction of fractional derivatives and integrals
with respect to a function, based on a matrix approach. We believe that this is a powerful
tool in both analytical and numerical calculations.We begin with the differential
operator with respect to a function that generates a semigroup. By discretizing this
operator, we obtain a matrix ...
Added: September 26, 2026
Volpe V., Palladino R., Storlazzi A., British Food Journal 2026 P. 1–27
Purpose
The application of digital technologies in food information is profoundly transforming how consumers access, interpret and use nutritional information. This paper systematically reviews digital technologies integrated into food labelling systems and evaluates their impact on consumer behaviour, transparency and informed decision-making.
Design/methodology/approach
A systematic literature review (SLR) was conducted following the PRISMA protocol, covering peer-reviewed studies published ...
Added: September 25, 2026
Bo S., Christofi M., Battisti E. et al., Technological Forecasting and Social Change 2026 Vol. 2028 P. 1–13
In the face of rising sustainability expectations and limited resources, startups must balance financial objectives with ESG (environmental, social, and governance) goals under uncertainty. This study examines how ESG behavior influences external resource acquisition, financing choices, and strategic outcomes in early-stage enterprises. Drawing on the entrepreneurial learning perspective, we argue that startups refine ESG strategies ...
Added: September 25, 2026
Petr Kucheriaviy, Bulletin of the Australian Mathematical Society 2026
We prove that an analogue of Rogers’ theorem on sieving holds for an order if and only if the order is a Dedekind domain. We also prove that it holds for a finite commutative ring if and only if the ring is a direct product of local rings with linearly ordered ideals. ...
Added: September 25, 2026
Kilinc-Ata N., Proskuryakova L. N., Natural Resources Forum 2026 P. 1–18
The convergence of energy transition and digitalization represents two pivotal trends in the global economy that complement each other. The decrease in carbon dioxide (CO2) emissions is facilitated by larger Internet access and more substantial investments in research and development. This study sheds light on the dual impact of digitalization and innovation on CO2 emissions ...
Added: September 25, 2026
Пелевин Ф. Е., Математические заметки 2026 Т. 120 № 1 С. 159–163
Две не равные тождественно нулю функции (последовательности элементов некоторого поля) будем называть эквивалентными, если они удовлетворяют функциональному уравнению типа теорем сложения тэта-функций. Основной результат работы состоит в том, что рассматриваемое отношение действительно является отношением эквивалентности. ...
Added: September 25, 2026
Shimanogov I. N., Vyalyi M., Siberian Mathematical Journal 2026 Vol. 67 No. 5 P. 1203–1212
We consider a class of Boolean algebras formed by intersections of regular languages with
a given language. In the case where such an algebra is isomorphic to the algebra of regular languages,
we prove the existence of an isomorphism that is computable using oracles for the regular realizability
problem and the infinite regular realizability problem. This result yields ...
Added: September 25, 2026
М.: 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 the international standards ISO 21500 and ISO 21502.
It complies with the requirements of the latest generation of Federal ...
Added: September 25, 2026
Ramazanov I., Bukh A., Shepelev Igor A., Chaos 2026 No. 36 P. 083150–083150
We investigate how stochastic Poisson impulsive forcing influences the spatiotemporal dynamics of a two-dimensional network of Hindmarsh–Rose neurons. Unlike continuous noise, impulsive forcing introduces discrete, state-dependent perturbations, making the system response highly sensitive to both the statistics and the spatial structure of the input. In most of the parameter space, stochastic impulses destabilize the initial ...
Added: September 24, 2026
Vicentin D. C., Salati Marcondes de Moraes G. H., Brandao Fischer B. et al., IEEE Transactions on Engineering Management 2026 Vol. 73 P. 4455–4470
International science collaboration countries have expanded considerably in recent years; nevertheless, institutional and organizational barriers and challenges continue to undermine the effectiveness of joint research initiatives. This study examines how such barriers are associated with perceived academic and technological outcomes, drawing on a primary dataset of 396 survey responses from researchers in BRICS-countries-based collaborations. The ...
Added: September 24, 2026
Levashev V., / Series arXiv "math". 2026. No. 2609.06010.
We prove that continuous A-bilinear pairings on the ring of Laurent series that are invariant under continuous automorphisms coincide, up to a constant, with the pairing given by the residue of a differential form over any commutative associative ring with identity. ...
Added: September 24, 2026
Sokolov V., Adler V. E., Journal of Geometry and Physics 2026 Vol. 227 Article 105860
The group reduction procedure is applied to vector generalizations of the NLS, mKdV,
and KdV equations. The resulting ODE systems admit isomonodromic Lax representations
and are multicomponent generalizations of the Painlevé equations P 1, P 2, P 34, and P 4.
Some of them can be interpreted as nonautonomous deformations of well-known systems
integrable in the Liouville sense, in ...
Added: September 24, 2026
Makushkin M., Деньги и кредит 2026 Т. 85 № 2 С. 82–100
The paper considers the problem of estimating the coupon-free yield curve of Russian bonds in yuan. The relevance of the topic is explained by the increased popularity of yuan-denominated bonds in the Russian market since 2022, as well as the recent appearance of the first federal loan bonds (OFZ) in yuan. Given that the number ...
Added: September 24, 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