Production and Carbon Emission Permits Trading Dynamic Optimization in the Duopoly Market
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摘要:在碳排放约束下,利用动态古诺模型,分析厂商如何优化产量、交易碳排放权的规模、净化节约额以实现利润最大化的问题,得到相应的均衡量和各阶段最优量,并给出竞争市场中的企业减排策略以及政府的行为和碳排放权价格对企业减排策略的影响,阐述在竞争市场中减排和碳排放权交易的运行机制。研究发现: 双寡头竞争市场中存在均衡状态;在减排率较低时,制造上获得最高利润,而企业追求过高的减排率将会导致过分依赖碳减排市场而获得较低的利润;制造商应该适时低价购入过量碳排放权,而在高价时卖出多余的碳排放权,以充分利用碳排放权市场以增加利润降低成本;制造商的利润会随着政府碳排放权分配系数的增加而增加。Abstract:Within the constraints of carbon emissions, the question of how to optimize the production, the trading carbon emissions and the emissions of purification to maximize the firm's profit is investigated with the dynamic Cournot model. Besides, the corresponding solutions in the equilibrium state and in each period are obtained. The strategy of carbon reduction and the impacts of the regarding policy of government and the price of carbon emission permits on the firm's decision-making as well as the operating mechanism of the trading carbon permits in the competitive market are present. We find that there exists the equilibrium state in the dynamic Cournot market within the constraints of carbon emissions and that the maximum profit is obtained in a lower rate of carbon reduction while excessively pursuing a higher rate will result in a lower profit. The firm should purchase excess carbon emission permits at a lower price in good time and sell the surplus at a higher price to increase its profit and reduce its cost. In addition, the firm's profit increases in the allocation coefficient of carbon emissions permits.
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