A　new　analytical　framework　of　relatively　competitive　advantages　of　economies　is　established　in　this　paper,　which　involves　distinguishing　functions　of　industrial　sectors　on　the　global　value　chain　with　bipartite　graph　theory　and　extracting　inter-sector　competitive　relations　through　resource　allocation　process.　Furthermore,　it　introduces　network-based　quantitative　indices　to　measure　the　competitive　advantage　on　the　level　of　industrial　sector　and　country　respectively,　taking　scarcity　of　industrial　resources　into　consideration.　Finally,　it　carries　out　scenario　simulation　to　analyze　impacts　on　13　TPP-related　countries＇　competitiveness　under　four　kinds　of　scenarios.　Results　show　that　a　TPP　without　both　the　United　States　and　China　will　undermine　the　two　countries＇　competitiveness,　and　China＇s　impact　on　GVC　will　be　truly　weaken　if　a　TPP　agreement　led　by　the　United　States　is　reached　and　vice　versa.　Anyway,　A　TPP　including　both　these　two　countries　would　serve　the　mutual　interests.　(C)　2018　Elsevier　B.V.　All　rights　reserved.