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On the asymptotic behavior of bubble date estimators
Journal of Time Series Analysis. 2023. Vol. 44. No. 4. P. 359–373.
Kurozumi E., Skrobotov A.
In this study, we extend the three-regime bubble model of Pang et al. (2021, Journal of Econometrics, 221(1):227–311) to allow the forth regime followed by the unit root process after recovery. We provide the asymptotic and finite sample justification of the consistency of the collapse date estimator in the two-regime AR(1) model. The consistency allows us to split the sample before and after the date of collapse and to consider the estimation of the date of exuberation and date of recovery separately. We have also found that the limiting behavior of the recovery date varies depending on the extent of explosiveness and recovering.
Keywords: Time series analysis
Bernardin C., Gonçalves P., Olla S., Mathematical Physics Analysis and Geometry 2024 Vol. 27 No. 7
We consider the macroscopic limit for the space-time density fluctuations in the open symmetric simple exclusion in the quasi-static scaling limit. We prove that the distribution of these fluctuations converge to a gaussian space-time field that is delta correlated in time but with long-range correlations in space. ...
Added: October 6, 2026
Lola I. S., Ostapkovich G. V., Asoskov D., ИСИЭЗ НИУ ВШЭ, 2026.
Центр конъюнктурных исследований Института статистических исследований и экономики знаний НИУ ВШЭ представляет информационно-аналитический материал «Потребительские настроения населения в III квартале 2026 г.», подготовленный в рамках Программы фундаментальных исследований НИУ ВШЭ.
В основу обзора положены ежеквартальные опросы более 5 тыс. человек в возрасте от 16 лет и старше. Такие опросы Федеральная служба государственной статистики (Росстат) проводит во всех субъектах ...
Added: October 6, 2026
Bernardin C., Chhaibi R., Najnudel J. et al., Probability Theory and Related Fields 2026 Vol. 195 P. 1823–1875
We study the celebrated Shiryaev-Wonham filter (Wonham, W.M., in J. Soc. Ind. Appl. Math. 347–369, 1964) in its historical setup, where the hidden Markov jump process has two states. We are interested in the weak noise regime for the observation equation. Interestingly, this becomes a strong noise regime for the filtering equations. Earlier results of ...
Added: October 5, 2026
Rastvortseva S., Tyushkevich Y., Salushkina Z. S., Journal of regional and international competitiveness 2026 Vol. 7 No. 2 P. 38–49
This paper examines the contemporary models of international competitiveness adopted by Big Tech corporations between 2010 and 2025. The study aims to identify the internal drivers underpinning the resilience of technological giants and to assess their capacity to withstand external shocks, including sanctions, geo-economic fragmentation, and regulatory shifts. To achieve this objective, the authors employ ...
Added: October 5, 2026
De Gruyter, 2026.
Post-Soviet Eurasia is one of the world's most geopolitically consequential and rapidly transforming regions. Developments across it increasingly reshape political, economic and social relations far beyond its borders. Understanding these dynamics is therefore both intellectually urgent and analytically demanding, requiring an interdisciplinary approach capable of moving beyond established categories and fragmented national perspectives.
This handbook provides ...
Added: October 5, 2026
М.: Национальный исследовательский университет "Высшая школа экономики", 2026.
В шестнадцатом выпуске электронного издания «Вестник Российского мониторинга экономического положения и здоровья населения НИУ ВШЭ (RLMSHSE)» представлены работы, подготовленные на основании данных лонгитюдного обследования домохозяйств «Российский мониторинг экономического положения и здоровья населения НИУ ВШЭ» (РМЭЗ НИУ ВШЭ) за 1992–2024 гг. В выпуске рассматриваются динамика доходов и расходов российских домохозяйств, тенденции развития рынка труда, социальное самочувствие ...
Added: October 5, 2026
Ismailov A., Spiridonov V., Успехи математических наук 2026 Т. 81 № 5 С. 183–184
Получена новая формула для цепной дроби Аски–Вильсона в форме отношения двух q-гипер-геометрических рядов. ...
Added: October 5, 2026
Милицына П. С., Rozhkova K., Roshchin S. et al., Высшее образование в России 2026 № 8-9 С. 94–115
Привлечение и удержание молодых педагогов в школах является одним из важнейших вопросов для преодоления проблемы кадрового дефицита в системе образования. В статье анализируются особенности трудоустройства выпускников российских вузов педагогических специальностей выпуска 2021–2022 гг. На основе тотальных административных данных выявлены факторы, влияющие на вероятность их первоначального трудоустройства в школу и последующего закрепления в профессии. Результаты показывают, ...
Added: October 5, 2026
Автухова Е. Э., Larionov A., Плачинда К. Д., М.: Экономический факультет МГУ им. М.В. Ломоносова, 2026.
Данное методическое пособие разработано в соответствии с рабочей программой курса «Банковское дело», реализуемого на Экономическом факультете МГУ имени М. В. Ломоносова по специальности «Экономика» (бакалавриат), и может быть рекомендовано для подготовки к семинарским занятиям и самостоятельной работе студентов. ...
Added: October 4, 2026
Abdulkhaev K., Shirokov D., Advances in Applied Clifford Algebras 2026 Vol. 36 P. 1–21
In this paper, we present explicit formulas for the inverse and determinant in geometric (Clifford) algebras over vector spaces of dimension n = 7. The derivation of these formulas is made possible by generalizing the concept of conjugation to basis conjugation operations. We further develop a general method for constructing such formulas over odd-dimensional spaces ...
Added: October 4, 2026
Kuninets A., IEEE Transactions on Information Theory 2026 P. 1–1
In this work we study the applicability of Quasi-Cyclic Subfield Subcodes of Dual Elliptic (QC-SSDE) codes for integration into code-based cryptographic schemes. Detailed algorithms are provided for constructing parity-check matrices as well as block-circulant parity-check matrices for this family of codes, accompanied by empirical results that enable the construction of QC-SSDE codes with predetermined dimensions. ...
Added: October 3, 2026
Demidova O., Kazakova S., Applied Economics 2026 P. 1–14
This paper examines the nonlinear relationship between inflation and economic growth across Russian regions, contributing to the literature on the inflation-growth nexus by using subnational evidence from a large and economically heterogeneous country. Using panel data for 83 regions over the period 2015–2023, we estimate fixed-effects models with a quadratic specification of inflation. The growth-maximizing ...
Added: October 3, 2026
Medvedev G., Alexandrov Artem, Physical Review E - Statistical, Nonlinear, and Soft Matter Physics 2026 Vol. 114 Article 044102
Graphons are measurable functions used to describe the asymptotic behavior of convergent graph families. Originally motivated by problems in combinatorics and graph theory, graphons have found numerous applications in the modeling and analysis of dynamical processes on networks. In this work, we use graphons to formulate the Ising model on convergent graph sequences, which include ...
Added: October 2, 2026
Pochinka O., Baranov D., Nozdrinova E., Теоретическая и математическая физика 2026 Т. 229 № 1 С. 3–14
The Birman–Williams problem on describing the planetary link of a fibered knot K in S^3 has been partially solved. Using Nielsen's theory for the classification of periodic surface homeomorphisms and its close relationship with the theory of gradient-like diffeomorphisms, it is proved that the planetary link of the trefoil (the unique periodic fibered knot of genus ...
Added: October 2, 2026
Ibragimov R., Distaso W., Skrobotov A. et al., Plos One 2022 Vol. 17 No. 12 P. e0275516–0
Added: November 16, 2024
Skrobotov A., Dependence Modeling 2023 Vol. 11 No. 1 Article 20220152
This review discusses methods of testing for explosive bubbles in time series. A large number of recently developed testing methods under various assumptions about innovation of errors are covered. The review also considers the methods for dating explosive (bubble) regimes. Special attention is devoted to time-varying volatility in the errors. Moreover, the modelling of possible ...
Added: November 16, 2024
Skrobotov A., Skrobotov A., Communications in Statistics-Theory and Method 2022 Vol. 52 No. 17 P. 5952–5965
Added: November 16, 2024
Kurozumi E., Skrobotov A., Tsarev A., Journal of Financial Econometrics 2023 Vol. 21 No. 4 P. 1282–1307
This paper is devoted to testing for bubbles under time-varying non-stationary volatility. Because the limiting distribution of the seminal Phillips, Wu, and Yu (2011) test depends on the variance function and usually requires a bootstrap implementation under heteroskedasticity, we construct the test based on a deformation of the time domain. The proposed test is asymptotically pivotal under ...
Added: November 16, 2024
Skrobotov A., Skrobotov A., Economics Letters 2022 Vol. 212 P. 110276–0
Added: November 16, 2024
Shabanov N., Sergey A. Bartalev, Kobayashi H. et al., IEEE Transactions on Geoscience and Remote Sensing 2023 Vol. 61 Article 4405717
Forest is a multi-layered canopy, where overstory and understory implement different biogeochemical cycles, phenology and functional role. Remote sensing products typically estimate forest total Leaf Area Index (LAI), while few quantify its components. The theoretical understanding of foliage distribution between layers is still quite limited. In this study we’ve developed a semi-empirical model for decomposition ...
Added: July 5, 2023
Dyatchkova N., Grishunin S., Karminsky A. M., , in: 6th International Conference on Information Technology and Quantitative ManagementIssue 139: 6th International Conference on Information Technology and Quantitative Management.: United States of America: Editions Elsevier, 2018. P. 17–24.
The main goal of this paper is to study interconnections between credit ratings and financial indicators of industrial companies from BRICS countries. We use method of patterns, one of the modern methods of nonlinear modeling, to identify groups of heterogeneous objects with different influence on ratings. Additionally, in this research, we evaluate Tobit regression model ...
Added: November 15, 2019
Mustafin A., / Series HUM "Humanities". 2019.
Kondratiev long cycle is generally treated as a phenomenon of a modern world economy. However, the existence of major cycles before the Industrial Revolution does not contradict the theoretical views of Kondratiev, the founder of the long-waves theory. We have discovered Kondratiev’s documents, which show him going farther back in history. The key question we ...
Added: August 12, 2019
Arkhipov R., Katyshev P., Прикладная эконометрика 2016 Т. 44 С. 38–49
We consider the problem of cointegration of the macro indices of Russian economy (GDP, money aggregate M2, budget expenses, real effective exchange rate) and electric power generation. It is assumed that on time interval (1999–2015) under consideration a structural change (regime shift) is allowed, and as a result the cointegration relationship may be changed. The ...
Added: October 22, 2018
Stankevich I., Труды Института системного анализа Российской академии наук 2018 Т. 68 № 2 С. 55–58
The paper analyses the necessity of seasonal adjustment in dynamic models. It is shown, that seasonal adjustment of the time series can influence its’ properties in terms of unit root and cointegration tests. This influence depends of the seasonal adjustment procedure and the test selected. If there is a cointegration between series, seasonal adjustment of ...
Added: October 22, 2018