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<p>Aligning automotive industry decarbonization with charging infrastructure expansion remains a critical policy challenge. While dual-credit policy target manufacturers and subsidies support infrastructure operators, their combined effects remain poorly understood. Here, we develop a Stackelberg game model integrating government, electric vehicle (EV) and fuel vehicle (FV) manufacturers, charging operators, and consumer green preferences. Our analysis reveals a significant synergistic effect: combined policies increase EV adoption by ~7%. Notably, charging infrastructure subsidies amplify EV price responsiveness to credit policy changes while dampening FV price sensitivity. We further show that rising consumer environmental preference accelerates market transition and reduces fiscal subsidy burdens. These findings demonstrate that coupling demand-side signals with supply-side regulations enhances policy efficacy, suggesting a pathway toward more efficient, market-integrated decarbonization strategies for the transport sector.</p>

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Policy synergies and market dynamics in green vehicle adoption: a game-theoretic framework with heterogeneous consumer preferences

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年5月27日

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  • Liangui Peng,
  • Jingyuan Chen,
  • Litao Yin,
  • Dinghua Liu

摘要

Aligning automotive industry decarbonization with charging infrastructure expansion remains a critical policy challenge. While dual-credit policy target manufacturers and subsidies support infrastructure operators, their combined effects remain poorly understood. Here, we develop a Stackelberg game model integrating government, electric vehicle (EV) and fuel vehicle (FV) manufacturers, charging operators, and consumer green preferences. Our analysis reveals a significant synergistic effect: combined policies increase EV adoption by ~7%. Notably, charging infrastructure subsidies amplify EV price responsiveness to credit policy changes while dampening FV price sensitivity. We further show that rising consumer environmental preference accelerates market transition and reduces fiscal subsidy burdens. These findings demonstrate that coupling demand-side signals with supply-side regulations enhances policy efficacy, suggesting a pathway toward more efficient, market-integrated decarbonization strategies for the transport sector.