united nations td conference on trade and development distr general b com 1 em 9 2 16 april 1999 original english board commission in goods services commodities expert meeting air transport clarifying issues to define the elements of positive agenda developing countries as regards both gats specific sector negotiations interest them geneva 21 23 june item 3 provisional for report by unctad secretariat executive summary re gulatory landscape international is changing ver y quickly at many lev els same time reflecting dynamism these changes aim meet consistently increasing demand ai r around world through more flexible approaches regulation remains however very complex from a regulatory perspective task reconciling need flexibility wit h infrastructure safety environmental concerns can limit considerably scope policy actions transition primarily bilateral regime an increasingl inclusive even absence physical other limitations raises