关键词: 碳排放, 碳补贴, 碳税, 决策优化, 协调

Abstract: The carbon tax policies and government subsidies for manufacturers of carbon emission reduction technology innovation investment are considered, a supply chain game model is established, and the contract forms and parameters are given according to coordination condition. By solving the model of supply chain, the optimal carbon reduction emissions and the optimal order quantity are given under the carbon tax and carbon subsidy. The numerical results show that the impacts of the optimal order quantity, the optimal carbon reduction quantity and the profit of the supply chain under government subsidy are tremendous, and they are a positive relationship. Carbon tax and carbon reduction subsidy proportion are an inverse relationship when the other parameters are fixed and carbon reduction quantity is a certain circumstance. The conclusion can provide scientific decision basis for the government subsidy policy to reduce emissions and carbon reduction optimization of supply chain.

Key words: carbon emission, carbon reduction subsidy, carbon tax, decision-making optimization, coordination