| From the perspective of learning effect,this paper examines the different intertemporal carbon trading behaviors of enterprises under different carbon emission rights prices and the choice of emission reduction strategies.Firstly,this paper defines two intertemporal carbon trading strategies,namely non learning effect strategy and learning effect strategy.Secondly,based on the non learning effect strategy,this paper puts forward the basic model that the price level of carbon emission right affects the intertemporal carbon trading behavior of enterprises.In this paper,the optimal control method is used to solve the model,and the influence of carbon emission trading price on enterprise production level,emission reduction,carbon emission trading volume,carbon emission reserves,carbon dioxide stock level in the air,external damage growth rate and enterprise profit is studied.At the same time,the calculation results are further analyzed in theory and examples.Then,based on the learning effect strategy,an extended model is proposed and solved by the optimal control method.Theoretical analysis and example analysis are carried out for the calculation results.Then,in order to study the choice of carbon emission reduction strategies under different carbon emission right price levels,we set three different carbon emission right price levels,and simulate the intertemporal carbon trading behavior of enterprises with learning effect strategy under different price levels.Through comparative analysis of the differences,this paper puts forward suggestions on the choice of intertemporal carbon trading strategy.Finally,from the perspective of carbon emission right price,the paper puts forward suggestions on the price setting of government carbon emission right,and gives the management enlightenment in the process of carbon emission reduction from the perspective of enterprises.The results show that,（1）The price level of carbon emission trading will affect the intertemporal carbon trading behaviors of enterprises,including optimal emission reduction,optimal external damage rate,optimal storage capacity,optimal carbon dioxide in the air and enterprise profits.Moreover,inter-term carbon trading mechanism is more conducive to promoting enterprises to actively reduce emissions.（2）Appropriately raising the trading price of carbon emission permits can improve the optimal emission reduction of enterprises,increase their profits and promote their development.Compared with the higher level of carbon emission trading price,the lower level of carbon emission trading price has lower carbon emission reduction and lower profit.Although it still promotes the sustainable development of the environment on the whole,the effect is relatively poor.（3）Considering the accumulation process of emission reduction experience in the process of carbon emission reduction,the learning effect influences the inter-period carbon trading behavior of enterprises,but the production level and carbon emission trading behavior of enterprises do not change.No matter at what level of carbon emission right price,learning effect strategy is more conducive to promoting enterprises’ active emission reduction,improving their emission reduction experience level and technology upgrading,and enterprises can control emissions more flexibly according to production demand.Therefore,this paper believes that the formulation of national emission reduction plans should not be too loose,otherwise the scarcity of enterprise carbon emission rights will not occur,and the effectiveness of price affecting the transmission of enterprises’ inter-period carbon trading strategy will be reduced.While pursuing their own profit maximization,enterprises should make full use of the advantages of learning effect to improve emission reduction efficiency in order to meet the requirements of environmental regulatory authorities. |
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