Estimating the threshold interactions between income inequality and carbon emissions

Area of Science:

• Environmental Economics
• Development Studies
• Econometrics

Background:

• Rising global carbon emissions pose significant environmental challenges.
• Income inequality is a growing concern worldwide, with potential environmental implications.
• Understanding the interplay between economic factors and emissions is crucial for sustainable development.

Purpose of the Study:

• To investigate the complex relationship between income inequality and carbon emissions globally.
• To explore the nonlinear and threshold effects of globalization, income inequality, and economic growth on carbon emissions.
• To identify policy implications for mitigating carbon emissions while addressing income inequality.

Main Methods:

• Utilized a dynamic panel threshold model with cross-sectional dependence.
• Employed balanced panel data from 92 countries spanning 1991-2015.
• Analyzed nonlinear and asymmetric impacts of threshold variables.

Main Results:

• Confirmed nonlinear effects of threshold variables on the relationship between income inequality and carbon emissions.
• Found that globalization significantly reduces the impact of income inequality on carbon emissions.
• Demonstrated that shrinking income inequality and spurring economic growth also contribute to emission reduction.

Conclusions:

• Globalization plays a critical role in mediating the relationship between income inequality and carbon emissions.
• Policy recommendations emphasize promoting globalization, reducing income inequality, and fostering economic growth for environmental goals.
• Stakeholders should prioritize reinforcing globalization trends to balance inequality alleviation and carbon emission mitigation.