This study highlights the importance of fiscal decentralization in promoting a sustainable environment. The literature on the importance of fiscal decentralization in affecting environmental quality is scant, and thus, this study attempts to fill the gap by incorporating the linear and nonlinear terms of fiscal decentralization as possible determinants for CO₂ emissions. Particularly, we utilize data from seven highly fiscally decentralized countries, that is, Australia, Austria, Belgium, Canada, Germany, Spain, and Switzerland, over the period 1990–2018. For empirical analysis, advanced panel data econometric tools are used that can deal with both heterogeneous coefficients and dependence of cross‐sections. The findings confirm that linear and nonlinear terms of fiscal decentralization improve the environment by reducing CO₂ emissions. Moreover, gross domestic product (GDP) increases, while eco‐innovation and renewable energy usage reduce CO₂ emissions. This study recommends that any policy that targets green growth will affect CO₂ emissions. Moreover, policies targeting fiscal decentralization, GDP, eco‐innovation, and renewable energy will play the role in more than 1 year, namely in the long run.

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财政分权和生态创新是否促进了可持续环境？某些财政分权国家的案例研究

这项研究强调了财政分权在促进可持续环境方面的重要性。关于财政分权对影响环境质量的重要性的文献很少，因此，本研究试图通过将财政分权的线性和非线性项纳入CO _2的可能决定因素来填补空白。排放。特别是，我们利用了1990-2018年期间来自七个高度财政分散的国家（即澳大利亚，奥地利，比利时，加拿大，德国，西班牙和瑞士）的数据。为了进行经验分析，使用了先进的面板数据计量经济学工具，该工具既可以处理异构系数，也可以处理横截面依赖性。研究结果证实，财政分权的线性和非线性条件通过减少CO ₂排放来改善环境。此外，国内生产总值（GDP）增长，而生态创新和可再生能源的使用减少了CO ₂排放。这项研究建议任何针对绿色增长的政策都将影响CO ₂排放。而且，针对财政分权，GDP，生态创新和可再生能源的政策将在一年以上的时间里发挥作用，即从长远来看。