Hebei University of Technology
Under the mixed carbon policy of carbon tax and carbon trading, based on the supply chain perspective, this paper studies whether the manufacturer in the process of promoting of clean production technology still need to retain the general technology, and explores the relationship between the optimal reduction rate of the low-carbon product and the carbon quotas and the carbon tax, which provides a theoretical basis for the government to formulate policies. Research shows that whether the manufacturer still retains the general technology depends on the difference between the carbon emission costs of ordinary products and low-carbon products. When the difference is less than the threshold, the two products are jointly produced, otherwise the ordinary products will be discontinued. The government can promote optimal reduction rate of the low carbon product by adding carbon quotas. The impact of carbon tax on the optimal reduction rate is more complex. When the emission reduction cost of clean technology is relatively low, the increase of the carbon tax can promote the reduction rate of low-carbon products. When the cost is high, the increase of a carbon tax will make the emission reduction rate increase first and then decrease. Finally, an example is given to verify the above conclusions.