Competition in network industries faces particular problems which are analyzed from both a theoretical and policy perspective. Issues of vertical integration, deregulation and privatization are covered. While competition and privatization are rapidly unfolding in telecommunications in Western and Eastern Europe, energy and railway transportation represent sectors of more gradual liberalization. The different market characteristics of telecommunications, energy and transportation raise consistency problems in the fields of deregulation, investment strategies and internationalization. While transformation policies create opportunities for liberalization in Eastern Europe and Russia the latter shows critical problems in ending monopoly and state ownership. Network industries could be subject to competition and promise major investment opportunities plus consumer benefits.