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在政府的排污控制政策下,对企业如何购买初始排污权和排污权期权,从而使自已的采购成本最小这一问题进行了研究。采用非线性规划模型,并利用Kuhn-Tucker条件分析了有约束条件时解的特征。研究发现:相对于无约束情形,有约束时企业的最优采购量明显下降;且有约束时,企业优先考虑购买初始配额,然后才决策是否购买期权和购买多少;在约束较紧期,企业的决策特征为只购买初始配额,而不买期权。在约束较为宽松时,企业在购买初始配额之外还会购买期权。以上应对措施避免了不确定因素带给企业的损失,同时又可以使企业减排。
Under the government’s pollution control policy, the issue of how to purchase the initial emission rights and emission rights options and thus minimize their own procurement costs was studied. The nonlinear programming model is adopted, and the Kuhn-Tucker condition is used to analyze the characteristics of the solution with constraints. The research shows that, compared with the unconstrained case, the optimal purchasing volume of enterprises with constraints is significantly reduced; and when there is a constraint, the enterprises give priority to purchasing the initial quota before deciding whether to buy the options and how much to buy; in the relatively tight period, The decision-making characteristic is that only the initial quota is purchased without buying the option. When the constraints are more relaxed, the company buys options in addition to the initial quota. The above measures to avoid the uncertainty caused by the loss of business, while allowing businesses to reduce emissions.