基于碳配额交易和减排技术的供应链策略选择

本文以一个碳排放依赖型制造商和一个供应商组成的两级供应链为研究对象，考虑碳配额与交易机制和碳减排技术投入及消费者低碳偏好等因素下的供应链策略选择问题。若政府制定的碳配额不足以满足目标生产，制造商可以通过碳交易获得额外的碳排放权或采用碳减排技术、或两者结合，以实现收益最大化。本文采用报童模型，针对制造商的几种策略建立了供应链成员的收益模型。研究发现，对于制造商来说，碳减排技术和购买额外碳排放权相结合的策略一直是最优的；碳交易使制造商的碳排放总量上升，政府应该谨慎推行；通过制定适当的碳配额，政府可激励企业投资碳减排技术，从而降低碳排放总量并提高经济效益。

Strategic Choice Analysis for Supply Chain in ‘Cap and Trade’ System and Carbon Emission Reduction Technology

This paper focuses on a two-stage supply chain consisting of one carbon-emission-dependent manufacturer and one supplier. The low-carbon preference customers are considered and the optimal strategy choices with ‘cap and trade’ policy and carbon emission reduction technology are investigated. If the carbon cap is not sufficient, the manufacturer may purchase extra carbon emission permit or adopt carbon reduction technology, or both of them to maximize the profits. By using the Newsboy model, it is found that the both of them policy will be the optimal choice for the manufacturer. The government should be cautious to implement carbon trading, because it will increase the total carbon emissions. In order to achieve the decrease in the total carbon emissions and enhance the economic benefits, the government can encourage the enterprises to invest in carbon reduction technology and set an appropriate carbon cap simultaneously.