This paper covers seasonal unit roots tests developed in the last 25 years. The main attention is given to HEGY test and its different modifications. Also we study some simple tests for seasonal unit roots, in particular, Dickey-Hasza-Fuller test.

The paper deals with methods of testing for seasonal unit root, deterministic seasonality and seasonal structural breaks in the time series. Note that among the tests for seasonal unit roots, we consider the LM-tests, likelihood ratio tests and the variance ratio tests, as well as principles of...

Transformation of the Russian economy from export-raw material to the innovation type of development conforms to the objective requirements to improve its competitiveness (including the financial sector of the economy) and proceeds from the substantial development objectives on the basis of...

This paper analyzes the impact of social policy on the welfare of children in OECD countries and Russia, and the development of recommendations, based on the experience of OECD countries, on the improvement of social policies aimed at improving the welfare of children in the Russian Federation....

This paper discusses the theoretical approaches to the analysis of cities in the period of the destruction of traditional society and the formation of modern urban communities, as well as the applicability of these theories to the analysis of urban communities in the North Caucasus (for example,...

The paper presents the history of formation of AE acts (1998-2007); assessment of the experience of implementation and application of AE PPA; analysis of research on the organization and conduct of AE PPA executed in 2009-2013; analysis and assessment of the prospects of development of AE PPA,...

This work is dedicated to the main trends of development of international education market, globalizing of higher education and conditions and factors of improvement of Russia's position in international education.

The article examines the relevance and quality of additional professional education from the point of view of the immediate-consumers of educational services in business enterprises. On the basis of the survey of 600 companies from six branches of national economy we made the conclusion about...

This work shows a brief overview of the main approaches to coordination of industrial and territorial development in foreign countries. Analysis of documents of strategic planning reveals that in the last time more countries have cluster initiatives aimed at solution of several tasks of economic...

The development of the national economy depends largely on the energy and, in particular oil and gas sector. However, the development of oil and gas companies with the potential presence of commodity resources and favorable market is restrained as macroeconomic issues (investment attractiveness,...