The phrase "modern economy" reveals the appearance of activities more complex and more efficient in which the scientific and technological contribution is determined under terms of quantity and quality in the organization of economic life. From the perspective of expanding services, information...

Providing services has become the most important sector of the economy and the main dynamic factor of the economic competition, within the developed countries economies. In such economies, the sector of economies has assimilated the workforce issued in the other sector, when this over plus of...