A/RES/55/182 provide support for economic integration among developing countries and among countries with economies in transition; 25. Requests the secretariat of the United Nations Conference on Trade and Development to continue to identify and analyse the implications for development of issues relevant to investment and to identify ways and means of promoting foreign direct and portfolio investment directed to all developing countries, taking into account their interests, in particular to those most in need, as well as to those countries with economies in transition with similar needs, and bearing in mind the work undertaken by other organizations, including the regional commissions; 26. Emphasizes the fact that, in line with Agenda 21 15 and the Rio Declaration on Environment and Development, 16 Governments should have the objective of ensuring that trade and environmental policies are mutually supportive so as to achieve sustainable development, and also emphasizes that, in so doing, their environmental policies and measures with a potential trade impact should not be used for protectionist purposes; 27. Reaffirms the role of competition law and policy for sound economic development, takes note of the important and useful work of the United Nations Conference on Trade and Development in this field, and, in this regard, decides to convene in 2005 a fifth United Nations Conference to Review All Aspects of the Set of Multilaterally Agreed Equitable Principles and Rules for the Control of Restrictive Business Practices, under the auspices of the United Nations Conference on Trade and Development; 17 28. Emphasizes that the dispute settlement mechanism of the World Trade Organization is a key element with regard to the integrity and credibility of the multilateral trading system and the full realization of the benefits anticipated from the conclusion of the Uruguay Round of multilateral trade negotiations; 29. Strongly emphasizes the need for technical assistance, including legal assistance, to developing countries through, inter alia, the Advisory Centre on World Trade Organization Law and other mechanisms, to enable those countries to take the fullest possible advantage of the dispute settlement mechanism of the World Trade Organization, based on multilaterally agreed rules and regulations, and, in this context, also emphasizes that it is important for the United Nations Conference on Trade and Development to continue to strengthen its technical assistance to developing countries, in particular the least developed countries, landlocked developing countries and small island developing States in this area; 30. Notes the increasing importance and application of electronic commerce in international trade and the need to strengthen the capacities of developing countries to participate effectively in electronic commerce; urges the organizations of the United Nations system, within their mandates and in cooperation with other relevant bodies, with the participation of their secretariats and the States Members of the United Nations and observer States, the United Nations Conference on Trade and Development, the International Telecommunication Union, the International Trade Centre and the regional commissions, to continue to assist developing 15 Report of the United Nations Conference on Environment and Development, Rio de Janeiro, 3-14 June 1992 (United Nations publication, Sales No. E.93.I.8 and corrigenda), vol. I: Resolutions adopted by the Conference, resolution 1, annex II. 16 Ibid., annex I. 17 See TD/RBP/CONF.5/15. 7