The problems concerning the labor resources are actual guidelines in scientific research field and in practical applicability; this domain has major implications on every economical-social structure. Labor force has an important place, together with the capital and the patrimony, in the...

In view of knowing the essence of phenomena it is necessary to perform statistical data processing operations. This allows for shifting from individual data to derived, synthetic indicators that highlight the essence of various phenomena. The high volume and diversity of processing operations...