In the context of global economic crisis, the management of multinational organizations have undergone significant changes, becoming more sensitive at the strategic matters. In the managerial leadership multinationals are faced again with the eternal dilemma: choosing a foreign manager in the...

The paper presents a model of reliability which captures the process by which reliability is actually determined more accurately than the conventional analysis. In contrast to that conventional analysis, which is based on the characteristics approach, the model of this paper defines reliability...

This study explores the influence of financial leverage and of management competence on firm performance using a sample of 102 listed firms in the Athens Stock Exchange. It is found that leverage contributes significantly to sales growth, stock returns, and profitability due to management...

Logistics development at the present moment of economic evolution has been influenced by a series of factors related to: the rise of research-development, impact of the competition environment, diversifying of products and services, evolution of technological processes, complexity of management...

This paper investigates the impact of determination of an original initiator of transmission on demand as well as profits of the providers. For that purpose we present a new model, called differentiated traffic-based interconnection agreement (DTIA) that differentiates traffic into two types,...

This paper applies the theory of social networks to P2P systems, creating a social-network-based P2P network topology formation algorithm for file sharing. The algorithm extends the Gnutella P2P file sharing technology, which uses super nodes for searching and for relaying shared files between...

While the h-Index and the g-Index (as the major indices for quantifying the academic performance of researchers) take into consideration the citation count of publications, some other important indicators of research output (i.e. the number of authors per paper, lead author, year of publication)...

Cost allocation between interconnected networks is based on measured traffic flows. This principle, however, does not provide a fair way for sharing costs. In this paper, a new bilateral model, called Differentiated Traffic-based Interconnection Agreement (DTIA) for intercarrier compensation is...

Although there are many studies for quantifying the academic performance of researchers, such as measuring the scientific performance based on the number of publications, there are no studies about quantifying the collaboration activities of researchers. This study addresses this shortcoming by...