In this paper business cycles are considered as a multivariate phenomenon and not as a univariate one determined e.g. by the GNP. The subject is to look for the number of phases of a business cycle, which can be motivated by the number of clusters in a given dataset of macro-economic variables....

The process of digital transformation and teleworking are some of the most debated topics in the specialized literature of the last decade due to the major impact they have on the stability, the evolution and the efficiency of the economy. The COVID-19 pandemic highlighted the competitive...

The development of Knowledge Intensive Business Services (KIBS) in recent decades can be interpreted as one of the major factors in a transition from an industrial economy into a knowledge-based one. It is an increasingly common belief that KIBS not only perform innovation activities in the...

The circular economy, an evolving concept, is considered a necessary and pragmatic solution for reconciling the link between the growth rate and the pressure on the resources of the environment. Therefore, the purpose of the paper is the quantitative assessment of the circular economy in the...

During the past decade, Europe was confronted with major changes and events offering large opportunities for mobility. The EU enlargement process, the EU policies regarding youth, the economic crisis affecting national economies on different levels, political instabilities in some European...

The implementation of bio-economy, respectively the transition from a fossil fuel-based development to an economy that uses biological resources and innovation in biological sciences requires the formulation of new strategies and policies focused on comprehensive analyzes. The aim of this study...

The purpose of this paper is to identify the main groups of CEE-16 countries in terms of tourism competitiveness. Competitiveness, as part of the supply side, is addressed in view of the supply-demand correlations, and we consider the attractiveness of tourist destinations from the tourists'...

Building homogenous classes is one of the main goals in clustering. Homogeneity can be measured by the intra-class variance (Bock, 1998). Especially in erosion projects but in other applications as well the separation between the built classes is as important as the homogeneity of the classes....

When analyzing business cycle data, one observes that the relevant predictor variables are often highly correlated. This paper presents a method to obtain measures of importance for the classification of data in which such multicollinearity is present. In systems with highly correlated variables...