حرير وكيليان

Today, global warming is considered a serious environmental issue. The widespread carbon emissions from fossil fuel combustion in manufacturing industries, including paper production, are among the key factors exacerbating this phenomenon. In response to growing concerns about carbon emissions and their impacts on climate change, establishing control schemes and policies, such as cap-and-trade, is essential. By creating carbon trading markets as an economic incentive, this policy can provide the opportunity for profitability while reducing carbon emissions. This research presents three proposed models for coordinating a two-level paper products supply chain under carbon cap-and-trade policy and stochastic demand with partial information. Since the government's role in continuing the move towards greenness is undeniable, in the first proposed model, the government, as an external driver, implements the traditional carbon cap-and-trade policy in the supply chain. Additionally, considering the high costs of green investment and the reduction in profit margins, the fairness concern for the manufacturer is considered. Considering the implementation challenges of cap-and-trade policy and validating claims related to carbon emission reductions, the second proposed model introduces a blockchain-based cap-and-trade policy designed to prevent fraud, manipulate carbon emission data, and address regulatory constraints affecting the performance of carbon trading markets through the definition of carbon credit tokens. In the third proposed model, the interaction between fairness concern behaviors and risk aversion is examined, and to account for the assumption of risk aversion, a chance-constrained method based on the CVaR approach is utilized. The accuracy and validity of the proposed models have been eva‎luated through numerical examples and sensitivity analysis concerning the main parameters. The obtained results demonstrate the effective role of cap-and-trade policy in reducing carbon emission levels and the potential for profitability. Implementing blockchain technology to enhance reliability and reduce regulatory constraints can lead to increased demand, improved carbon emission reduction levels, and profitability. Additionally, since the impact of social behaviors such as fairness concerns and risk aversion on the decisions and profitability of supply chain members is inevitable, adopting a two-part tariff coordination contract can effectively manage the influence of these behaviors.

هماهنگي زنجيره تأمين سبز , سقف و تجارت كربن , بلاك چين , نگراني انصاف , ريسك گريزي

Green Supply Chain Coordination , Carbon Cap-and-Trade , Blockchain , Fairness Concern , Risk-Aversion

Harir Vakilian

Dr. Seyyed-Mahdi Hosseini-Motlagh