排污权有偿使用和交易制度是发挥市场机制在污染物减排中的重要制度性安排,有利于污染物总量控制,也有利于企业减排经济价值市场化,即企业新增加的排污权需要向政府或其他企业购买,老企业采取减排等措施形成的富余排污权(企业取得政府认可排污权超出企 Paid use and trading system of emission rights is to play an important institutional arrangement of market mechanism in the reduction of pollutants, is conducive to the total amount of pollutants control, but also conducive to market-oriented economic value of emission reduction enterprises, that is, enterprises need additional emissions rights To the government or other enterprises to buy, the old enterprises to take measures to reduce emissions and other forms of surplus emission rights (enterprises to obtain government-approved emission rights beyond the enterprises