In this paper we consider a set of machine learning and econometrics models, namely: Elastic Net, Random Forest, XGBoost and SSVS as applied to nowcasting a large dataset of USD volumes of Russian exports and imports by commodity group. We use lags of the volumes of export and import commodity...

Russian Abstract: Оценка моделей с изменяющимися во времени параметрами нашла широкое распространение в макроэкономических исследованиях, реализуемых в течение...

One of the most pressing problems in the Latvian economy is related to the energy sector. The most characteristic feature is coupled with the low efficiency of thermal energy consumption of households as a result of poor insulation of existing buildings in Latvia. Solving energy sector problems...

Russian Abstract: В последние годы тема прогнозирования развития энергетических систем становится всё более актуальной. Всё большее число энергетических организаций и...

Parallel calculations on modern multiprocessing technics open new opportunities in application of mathematical models for research ekonomy of region. Use of normative models was limited to complexity of their identification due to a lot of unknown parameters. In work the technique of...

This paper presents an overview of some general concepts and techniques of an adequacy estimation of simulation models of the banking business processes. A proposal on specific requirements for computer simulation models to banking activity re-engineering and optimization is formulated.

The paper deals with the role of the isomorphism and homomorphism in the theory and practice of simulation. These concepts are considered as a methodological framework for models adequacy evaluation and for their suitability extent estimation to the study and improvement of economic systems,...

Dynamic models of economy contain a lot of parameters. Such models seldom manage to be identified so precisely that results of calculation have appeared are close to historical data. Parallel calculations facilitate the decision of a problem of identification, owing to essential acceleration of...

The article shows that actual public expenditure in the period of rapid oil prices growth of the 2000s was less than optimal level in Russia. The macroeconomic model of Russian economy is the basis of current research. The main mechanism of growth in an optimum scenario is associated with the...

After entering the European Union (EU) Latvia faced new possibilities in international labor market. In 2004 several member states opened their labor markets to workers from Latvia. The largest amount of labor force went to Ireland, Great Britain and Sweden. In these countries salaries were...