Selected aspects of Polish telecom market regulation

In this article was presented the essence of telecom market and its regulation. There was presented legislative history relating to establishment and competence evolution of the regulator of the polish telecom market. There was confirmed the thesis that the regulator activity had an influence on increase of the competition level in individual telecom market segments (fixed network telephony market, mobile telephony market, Internet access). This thesis confirmation as based on described cases of the Office of Electronic Communications activity and analyses of the market concentration indicators, which include Herfindahl-Hirschman's indicator