On the nexus between real income, renewable energy consumption, and environmental sustainability on life expectancy for BRICS-T countries: Accessing evidence from quantile regression

This study is aimed at establishing the impact of real income, renewable energy consumption, and carbon dioxide (CO2) emission on life expectancy for annual frequency data from 1990 to 2019 for BRICS-T (Brazil, Russia, India, China, South Africa, and Turkiye) economies. In addition, the effects of real income, renewable energy consumption, and life expectancy on CO2 emissions are given by establishing a second model. To this end, different econometric approaches such as fixed effects model, random effects model, panel quantile regression, and the Dumitrescu and Hurlin panel causality test were used. We found in our empirical evidence that renewable energy consumption and real income positively affect life expectancy. At the same time, it was seen that real income has a positive effect on CO2 emissions, but renewable energy consumption has a negative effect. According to the panel quantile regression analysis results, while the effect of income on life expectancy is similar to other estimation results, that of renewable energy consumption is different. However, the effect of renewable energy consumption and real income on CO2 emissions is similar to other estimation results. The findings of the study show that policy makers need to promote renewable energy in order to extend life expectancy which is an important determinant of economic growth.