基于EOQ模型,假设碳交易市场中存在一个零售商和一个供应商,并以该两级供应链为研究对象,建立包含减排投资在内的碳交易模型,严格限定企业碳配额上下限,对不同碳配额下企业之间碳交易情况进行分析讨论。研究表明,控制碳配额在企业碳排放最优和成本最优时的碳排放区间内时,可以有效促进企业投资减排,在一定的碳交易价格之下,上下游企业碳配额余量乘积为负是保证碳交易政策实施的基本条件,而碳价格并不影响供应链成本和碳排放。通过算例进一步分析了不同交易价格对零售商和供应商的影响,最后在碳配额范围内得到了最优碳配额和交易价格。
Based on EOQ model, one retailer and one supplier in carbon market are assumed, this two-stage supply chain is taken for object, and carbon trading model is built including investment for reducing emissions, and carbon trading situation is discussed between enterprises under strict carbon cap. The results show that when cap distributes between optimal emissions and emissions of optimal cost for enterprise, cap can promote enterprise to invest for reducing emission; that the product of left cap for upstream and downstream enterprise is negative is the basic condition for carbon trading policy's carrying under the reasonable trading price, but the price doesn't influence supply chain's emissions and cost. Furthermore, an analysis about trading price's influence on retailer and supplier is made, and optimal cap and price under reasonable cap are gotten.
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