Although　the　direct　impact　of　trust　on　alliance　performance　is　well　documented,　little　is　known　about　how　trust　affects　alliance　performance.　Based　on　the　resource-based　view,　this　study　develops　a　model　that　employs　resource　sharing　as　a　critical　mediating　mechanism　through　which　trust　affects　alliance　performance.　Using　survey　data　from　205　Chinese　firms　that　were　engaged　in　alliances,　we　find　broad　support　for　the　mediated　effects　of　trust.　Interestingly,　we　also　find　that　goodwill　trust　matters　more　to　tangible　than　to　intangible　resource　sharing,　whereas　competence　trust　matters　more　to　intangible　than　to　tangible　resource　sharing.　Overall,　our　research　provides　important　implications　for　firms　seeking　to　translate　their　trust　into　superior　alliance　performance.　(C)　2015　Elsevier　Inc.　All　rights　reserved.