Promoting the Diffusion of New Energy Vehicles under Dual Credit Policy: Asymmetric Competition and Cooperation in Complex Network

Abstract

This study aims to investigate the impact of dual credit policy on the diffusion of new energy vehicles (NEVs) from the perspective of complex interactions among heterogeneous manufacturers. Thus, the market competition and credit cooperation relationships, constituting the complex interrelated system in NEV diffusion, are considered in this paper. To this end, we established a double-layer complex network to depict the asymmetric competition and cooperation structure, and developed an evolution game model on network, revealing the diffusion rule and trend of NEVs among manufacturers. Simulation results show that the existence of credit cooperation relationship can effectively improve the diffusion of NEVs, especially when implementing cooperative strategy that prioritizes helping manufacturers with low sale profits. Such a cooperative strategy is effective for maintaining high diffusion of NEVs even under low NEV credit’s trading price. Meanwhile, the monopoly competitive structure characterized by scale free is harmful to NEV diffusion. However, credit cooperation can eliminate the by-effect of monopoly structure greatly by adopting the strategy of distributing by sale profits. In addition, manufacturers are advised to learn from their competitors during the evolutionary process, which should be the focus of manufacturers to maximize the NEV diffusion under small world competitive structure.

Did China's dual-credit policy promote innovation in new energy vehicle enterprises? An empirical study based on the PSM-DID method

“…When the government releases a policy signal in advance, corresponding strategic behavior is generated (Porter, 1996). When the technology level of NEV enterprises is low, they produce products according to the change in credit price to adapt to the credit requirement; however, this production does not realize the substantial technological innovation of enterprises (Li et al, 2022;Yu et al, 2022). Moreover, because of the enterprises' size, production structure, and technology, not all of them can adjust their appropriate production decision-making behaviors in a timely manner according to the policy.…”