Investigating the relationship between macroeconomic indicators, renewables and pollution across diverse regions in the globalization era

This paper delves into an econometric analysis to uncover the differences between Nordic European Countries - NEC (Norway, Denmark, Finland, Sweden) and South-East European Countries - SEEC (Greece, Bulgaria, Romania, Hungary). The focus is on exploring the interplay among electricity generation from Renewable Energy Sources (RES), CO2 emissions, urban population and GDP per capita in these two European regions. The study employs cross-sectional dependence, first and second-generation panel unit root tests, Pedroni panel and Westerlund panel cointegration tests, ARDL, Dumitrescu-Hurlin causality test to establish the relation among variables. The findings reveal that in both regions, CO2 emissions are significantly influenced by GDP per capita, urbanization and RES generation. Furthermore, urbanization plays an important role. When examining causality in SEEC, three bidirectional relationships are observed: urbanization and CO2, urbanization and GDP, urbanization and generation from RES, and two unidirectional causalities: CO2 and GDP, generation from RES and CO2. In contrast, for the NEC, there are two bidirectional causalities: urbanization and CO2, urbanization and generation from RES, and two unidirectional causalities: GDP and CO2, generation from RES and CO2. These results highlight the nuanced and varied nature of environmental and economic dynamics across various European regions.