Abstract
Competition is a global phenomenon aimed at creating and ensuring competitiveness in the marketplace. Competition law involves the promotion or maintenance of a competitive market. This paper aims to introduce the concepts of market definition and market power. The paper starts with an analysis of competition law by examining the way competition is interpreted in various jurisdictions. It then discusses how market is defined and the concept of market power and dominant position. This paper will not, however, focus on the abuse of dominant position and other prohibitions found in competition law. In the analysis, a comparison is made between the provisions found in the Malaysian Competition Act of 2010, the Malaysian Communications and Multimedia Act of 1998, the Treaty for the Functioning of the European Union (TFEU) and the Australian Competition and Consumer Act of 2010.