1.给正外部性经济主体补贴或奖励 MC A E MRp+ME Q+ E*1 B D=MRp Q 2024/8/12 New Institutional Economics 102024/8/12 New Institutional Economics 10 1.给正外部性经济主体补贴或奖励 P Px 0 MC D=MRp Q* Q** Q A E B * E** MRp+ME