“…For low- and lower-middle-income countries, population diversity is a small driver of CO2 emissions 44 | Dong et al (2020) | 130 countries (1997–2015) | -CO 2 emissions from fuel combustion, GDP | Decomposition (identity) analysis | UMI countries are the main contributors to recent CO 2 emission growth For the last two decades, while income increase had positively affected global CO 2 growth, declining energy intensity had a mitigating effect |
45 | Abban et al ( 2020 ) | 44 Countries, 16 low- and lower middle-income countries (1995–2015) | CO2 emission, GDP per capita, GDP squared, EI (kilograms of oil equivalent), FDI inflows | Westerlund–Edgerton cointegration, AMG estimation | EKC is only confirmed in HICs. Bidirectional causal effect between CO 2 and FDI Except LMICs, there is a bidirectional relation among EI and CO2 emissions For LMICs, there is a one-way causal effect from CO 2 to EI, and bidirectional relation among GDP and CO2 emissions Unidirectional causal effect from GDP to CO 2 emissions in HICs and LICs |
46 | Khaskheli et al ( 2021 ) | 19 Low-income countries (1990–2016) | Environmental degradation is estimated by CO 2 emissions, Private credit by banks as a percentage of GDP, GDP per capita, International trade percentage of GDP, population | Panel smooth transition regression model (PSTR) | The environmental measures of low-income countries are nonexistent. However, the implementation of measures mitigates environmental quality by decreasing CO 2 emissions FD has a positive relation with CO 2 in low regimes; however, on higher regimes effect turns in to negative GDP, international trade, and population has a positive effect on CO 2 ; however, in higher regimes, it has a diminishing effect |
47 | Alola and Joshua ( 2020 ) | 217 countries with low, lower middle, upper middle and high income (1970–2014) | Renewable energy, fossil fuel, globalization, CO 2 emission | Panel pooled mean group and Granger causality | Fossil fuel energy usage is the leading cause for increased carbon emissions in each of the included income groups ... |
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