“…In addition, some scholars have also tried using the computable general equilibrium (CGE) model (Zhang & Zhang, 2018). With these methods, existing studies have outlined some factors that most likely influence tourism CO 2 emissions, including energy intensity (Liu, Feng, & Yang, 2011;Robaina-Alves, Moutinho, & Costa, 2016), energy structure (Tang et al, 2017), carbon intensity (Robaina-Alves et al, 2016;Wang, Shao, Zhou, & Liu, 2017), tourist arrivals (Katircioglu et al, 2014;Liu, Chen, & Zhang, 2017), expenditure size (Liu et al, 2011), tourism economic output (Tang et al, 2014;Tang et al, 2017), sector structure (Tang et al, 2017), and carbon tax (Zhang & Zhang, 2018).…”