College of Environmental Science and Engineering, Nankai University, Tianjin 300350, PR China.
College of Environmental Science and Engineering, Nankai University, Tianjin 300350, PR China; Institute of Ecological Civilization, Nankai University, Tianjin 300350, PR China.
Waste Manag. 2022 Oct;152:6-16. doi: 10.1016/j.wasman.2022.08.004. Epub 2022 Aug 11.
This paper analyzes the impact of possible subsidy and preferential tax policies on mobile phone (MP) recycling industries in China using system dynamics methodology, aiming to offer a reference for the construction of a reasonable policy system for MP recycling. First, different subsidy and preferential tax policies were introduced to establish a system dynamics model. Then the impact of policies proposed on MP recycling industries was analyzed using the model. The results showed that: (1) newly discarded MPs could be completely recycled annually if recyclers could achieve a RMB10 recycling subsidy for each MP formally recycled; (2) an initial subsidy policy can effectively increase the number of remanufacturers, but is harmful to remanufacturing capacity; (3) stage R&D subsidy policy outperforms equalization R&D subsidy policy. Additionally, more subsidies allocated to remanufactures means more profit when R&D subsidy is limited; (4) more tax benefits provide more output and profit. Remanufacturers are more sensitive to tax benefits than recovery enterprises in the short run. Finally, several suggestions related to the construction of MP recycling policy systems were put forward based on evaluation results.
本文运用系统动力学方法分析了可能的补贴和税收优惠政策对中国手机（MP）回收行业的影响，旨在为 MP 回收的合理政策体系建设提供参考。首先，引入了不同的补贴和税收优惠政策，建立了系统动力学模型。然后，利用该模型分析了所提出政策对 MP 回收行业的影响。结果表明：（1）如果回收商每正式回收一部 MP 就能获得 10 元的回收补贴，那么每年就能完全回收新报废的 MP；（2）初始补贴政策能有效增加再制造商的数量，但不利于再制造能力；（3）阶段研发补贴政策优于均衡研发补贴政策。此外，在研发补贴有限的情况下，分配给再制造商的补贴越多，其利润就越高；（4）更多的税收优惠会带来更多的产出和利润。在短期内，再制造商对税收优惠比回收企业更敏感。最后，根据评估结果提出了与 MP 回收政策体系建设相关的几点建议。
