Can innovation shocks determine CO2 emissions (CO2e) in the OECD economies? A new perspective

This study has attempted to address prior knowledge gaps in the environmental economics literature by integrating the innovation shocks into the Environment Kuznets Curve (EKC) equation for twenty-six OECD economies using data from 1990 to 2014. Foreign direct investment (FDI), exports (EXP), renewable energy consumption (REC), and GDP per capita were included as control variables. The results from multiple empirical analyses indicated that positive shocks to innovation improve, but the negative shocks disrupt environmental quality. Data analyses also showed that a positive correlation exists between income per capita of OECD economies. From the negative coefficient of income per capita (squared) and the existence of a negative nexus between FDI and CO2e, both the EKC and the Pollution Halo Hypothesis (PHH) were confirmed in sampled economies, respectively. The paper offers empirical support for the favourable impacts of REC on the quality of the environment and calls for the adoption of innovation shocks as a policy instrument to formulate better environmental policies for a sustainable future.

Automated summary

This study integrates innovation shocks into the Environment Kuznets Curve equation for twenty-six OECD economies from 1990 to 2014, finding that positive shocks improve environmental quality while negative shocks disrupt it. The research also highlights the positive impact of renewable energy consumption on the environment and suggests using innovation shocks as a policy instrument for better environmental policies.