Generally, an activity is considered to be efficient if the production implies low costs or if the revenues from selling the products on the market outweigh the expenditures that were made to achieve them. Labor productivity as an efficiency indicator of a production process represents an...

Starting with the XIX century, we assist at one growth of information importance as following of development of government forms more complexes, of concurrence intensification and of development of communications systems. This process has been increased in the lasts years by the development of...