Implementation by the United Nations Conference on Trade and Development of the activities financed from the unspent balance from the regular budget for the biennium 1996-1997 and how the accomplishments have contributed to strengthening the capacity of the Conference, in particular, in priority areas and analysis of savings resulting from the improved overall cost-effectiveness achieved pursuant to the 9th session of the Conference, including the restructuring of the intergovernmental machinery and the reform of the secretariat, as requested by the General Assembly in its resolutions 51/167 of 16 December 1996, 52/220 of 22 December 1997 and 53/3 of 12 October 1998 : report of the Secretary-General