Electronic and Postal Communications (Competition) G.N. No. 420 (contd) dominant licensee licensese in the relevant market. Methodology for determination of dominant position 13.-(1) The Authority shall develop the methodology to be used in the determination and designation of the dominant position in the Tanzanian communications market. (2) In developing the methodology for determination of the dominant position, the Authority shall, among other things, take into consideration the criteria set under section (5) of the Tanzania Fair Competition Act. 14. In determining whether a licensee is in a dominant position, the Authority may consider, among others, the following factors(a) the market share of the licensee, determined by reference to revenues, number of subscribers, traffic or volumes of sales; (b) the overall size of the licensee in comparison to competing licensees, particularly any resulting economies of scale or scope that permit the larger licensee to produce products or services at lower costs; (c) control of network facilities or other infrastructure access which is required by competing licensees and that cannot, for commercial or technical reasons, be duplicated by competing licensees; (d) absence of the buying power or negotiating position by customers or consumers, including switching costs and any other barriers to switching service providers; (e) ease of market entry, and the extent to which the actual or potential market entry protects against the exercise of market power such as raising prices; (f) the rate of technological or other changes in the market, and related effects for market entry or the continuation of a dominant position. Cap 285 Criteria for determination of dominant position Definition of   15.-(1) The Authority shall assess, define and determine 78