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Risk is one of the important parameters in portfolio optimization problem. Since the introduction of the mean-variance model, variance has become the most common risk measure used by practitioners and researchers in portfolio optimization. However, the mean-variance model relies strictly on the assumptions that assets returns are multivariate normally distributed.

Effective leadership always plays an important role in the growth and better performance of the organization. This research has been conducted to determine the impact of transformational and transactional leadership style on job success and career satisfaction. A total of 240 responses (n = 240) from various private organizations working.

The objective of this paper is to present and analyze preliminary some selected methodological consequences of the disputes held between modernists and post-modernists for the contemporary theory of the firm. There is no doubt that the subject of these disputes constitutes the main axis in the discussion on the structure.

The article presents how Euroregions contribute to the execution of Lisbon Strategy’s objectives to ensure its positive outcomes. As „special” regions, Euroregion are the embodiment of entrepreneurship and they strive to be competitive. Because the Lisbon Strategy emphasised entrepreneurship-based competitiveness, especially the competitiveness of the SME sector, Euroregions, representing “natural.

Based on the technological progress and the complex work processes of our increasingly globalised world, novel ways of organising work can be seen everywhere. The EU has defined atypical forms of employment as breakthrough points in improving employment indices. Telework is probably the the most innovative atypical working form, offering.