碳限额与交易政策下企业的绿色生产决策

Enterprise′s Green Production Decision under Cap-and-trade Policy

在碳限额与交易政策下,除政府配给外,企业还可通过减少产量、生产绿色产品和购买碳排放权来获得额外的碳排放权。比较了不考虑和考虑固定成本两种情形下碳排放权市场交易价格与企业绿色产品生产成本的关系。结果表明:当企业生产绿色产品不存在固定成本时,随着碳排放权市场交易价格的提高,企业的最优产量逐渐减少,企业利润先降后增,企业由买入碳排放权转为卖出碳排放权;当企业生产绿色产品存在固定成本时,随着碳排放权市场交易价格的提高,企业生产绿色产品的固定成本的取值范围扩大。结论表明,碳限额与交易政策在控制碳排放和促进绿色制造业发展方面发挥着积极作用。

Under the Cap and trade policy, besides government ration,the enterprise has three ways to obtain additional carbon emissions,namely reducing production,producing green products and buying carbon emissions. This paper compares the relationships between carbon trading price and produce cost of green product in two conditions with and without fixed cost in production of green products. The results show as follows：when fixed costs of producing green products don＇t exist, with the increase of carbon trading price, enterprise＇s optimal production gradually reduce, and enterprise＇s profit first falls then increases, the enterprise has changed from buying to selling carbon emissions;when fixed costs of producing green products exist, with the increase of carbon trading price, the scope of fixed cost expands. The conclusion shows that cap-and- trade policy has a positive role in promoting the development of green manufacturing.