关键词: 技术交易型契约, 合作共享型契约, 契约选择, 碳减排外包, 消费者低碳偏好

Abstract: The paper is aimed at the issue of carbon emission reduction outsourcing in cooperation between manufacturer and low-carbon service provider under the background of government carbon quotas, carbon trading market mechanism and consumers' low-carbon preference. Technology transaction contract and cooperative sharing contract are optimized, the optimal decision and contract feasible conditions under the two contracts are obtained respectively, and the preferences of manufacturer and low-carbon service provider for the two contracts are further analyzed. Finally, we use transfer payment to coordinate the conflict of contract preferences. The research results show that both unit cost of emission reduction and unit market price of carbon emission right are the key factors that affect the feasibility of technology transaction contract and cooperative sharing contract. When unit minimum carbon emissions, unit emission reduction costs and unit market price of carbon emission right meet certain conditions at the same time, the two contracts can be simultaneously feasible. Manufacturer always prefer technology transaction contract, but low-carbon service provider's preference for contract are not certain. The use of transfer payment coordination can resolve the conflict of contract preference between the two parties and enable the two parties to reach a technical transaction contract. Finally, the rationality and effectiveness of the model is verified with examples.

Key words: technology transaction contract, cooperative sharing contract, contract selection, carbon emission reduction outsourcing, consumer's low-carbon preference