This　paper　utilized　a　three-stage　dynamic　game　to　analyze　the　conflicts　of　interest　between　stakeholders　caused　by　firm　heterogeneity.　We　show　that　the　higher　the　degree　of　heterogeneity,　the　higher　the　sales　delegation　incentive　given.　The　firm＇s　heterogeneity　scale　will　cause　industry　profit,　union　utility,　consumer　surplus　and　manager　bonus　conflicts　of　interest.　Furthermore,　the　intensity　of　conflict　is　lower　between　the　industry　and　the　union　than　between　the　industry　and　consumer　and　between　the　industry　and　manager　if　the　degree　of　heterogeneity　is　relatively　small.