Abstract. E-commerce can lead in many different ways to cost reduction in case of a supplier and can subsequently increase the competition potential of a company. As for the competition mechanism, such changes produce significant modifications within a market economy. The Internet renders the possibility of creating business contacts in a rapid and geographically independent manner, as well as possibilities of obtaining data and realizing transactions within the world's economy. Public acquisitions by means of dynamic systems and electronic bids are currently one of the significant areas of electronic commerce.

Keywords: information technology; costs; e-commerce; electronic markets; added value.