Do emerging markets sustainability indexes translate what they are supposed to?
This work aims to investigate the determinants of the carbon efficient index of B3. Thus, we analyzed information from 1423 firm-year observations between 2012 and 2016. The variable size has a significant and positive association as a determinant of the participation of companies in the index together with the industry in which companies operate. The result for size confirms previous national and international research analyzing the determi-nants of environmental management by companies.