“…Countries around the world discuss GTR, and several studies research environmental tax reform and environmental corporate social responsibility (CSR) (Milne et al, 2014;Stoianoff et al, 2016;Mori, 2014;Kreiser et al, 2014;Fosgerau and Jensen, 2013;Andreoni, 2019;Mayeres and Vanhulsel, 2017;Sun and Dong, 2011;Buccella and Wojna, 2019). In Portugal, some recent studies have started appearing (Rodríguez et al, 2019;Barros and P adua, 2019).…”