Yazar "Ike, George N." seçeneğine göre listele

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    Global evidence of multi-dimensional asymmetric effect of energy storage innovations on environmental quality: Delineating the role of natural resources, nuclear energy and oil consumption
    (Elsevier, 2024) Usman, Ojonugwa; Özkan, Oktay; Ike, George N.
    The strive to lower reliance on fossil fuels and transition to clean energy sources necessitates innovations in energy storage. This study empirically investigates the effectiveness of energy storage innovations towards a greener environment on a global scale. To this end, we use quarterly frequency time series data on a global scale over the period 2000 to 2020 and the estimation techniques based on the nonparametric multivariate quantile on quantile regression (MQQR), multivariate quantile regression (MQR), and Kernel-based regularized least squares (KRLS). The empirical results reveal that energy storage innovation and nuclear energy are strongly related to a decline in carbon dioxide emissions (CO2e) but natural resources and oil consumption intensify the level of CO2e across quantiles. However, the effects of energy storage innovation, nuclear energy, natural resources, and oil consumption are heterogeneous leading to an asymmetric pattern across quantile distribution. The policy implication of this study is that, on a global scale, energy storage innovation and nuclear energy provide opportunities for attaining a greener environment and more environmentally sustainable future but natural resources and oil consumption impede policies toward a sustainable environment. Therefore, our study recommends, among other things, an aggressive boost of energy storage system and nuclear energy while decreasing reliance on fossil fuels.
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    Investing green for sustainable development without ditching economic growth
    (John Wiley and Sons Ltd, 2022) Balcilar, Mehmet; Usman, Ojonugwa; Ike, George N.
    Global warming and other significant climatic changes arising from the accumulation of carbon dioxide and other greenhouse gases have placed great policy puzzles on whether to slow or not to slow gross domestic product (GDP) growth. This paper presents and estimates empirical models of growth using standard tools of growth empirics for 23 OECD countries over the period 1990–2017. The main objective is to examine the role of green energy consumption and investment on economic growth. Using the Method of Moments Quantile Regression (MMQR) with fixed effects, empirical results suggest that green energy consumption and investment—in the sense of renewable energy consumption and expenditure in renewable energy research and development (R&D)—have small, although positive effects on economic growth. These effects are heterogeneous, leading to asymmetric patterns over the conditional quantile distribution of per-capita GDP with stronger effects found in the lower quantiles. The implication of our findings is that capacity utilization in green energy consumption and investment has not been developed to a viable level that will mitigate greenhouse effects and spur sustainable development in the long run.
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    Modelling the air pollution induced health effects of energy consumption across varied spaces in OECD countries: An asymmetric analysis
    (Academic Press, 2024) Ike, George N.; Obieri, Oluchi C.; Usman, Ojonugwa
    The air pollution-induced health effects of energy consumption remain a grey area in the extant literature. As of yet, there are very limited studies on the subject matter for countries in the Organisation for Economic Co operation and Development (OECD). To this end, we employ panel data from 1990 to 2019 for 37 OECD countries and panel estimation techniques that control for distributional asymmetry. We also utilize a composite variable of mortality and morbidity to capture the full spectrum of air pollution-induced health burdens. Our findings reveal that renewable energy ameliorates the health burden of air pollution in indoor spaces, evidence for the ameliorating effects of renewable energy in outdoor and occupational spaces was however weak. We also show that income has an ameliorating effect on air pollution-induced health burdens across all spaces and that the effect of non-renewable energy is asymmetric and disparate across all spaces. Furthermore, while techno logical innovation ameliorates the health burden of air pollution in indoor spaces, it exacerbates the health burden of air pollution in both occupational and outdoor spaces. These findings thus show that the positive health implications of renewable energy policy interventions have more traction in indoor spaces. Capacity needs to be built in the renewable energy sector to reduce the pollution-inducing health burdens emanating from ambient and occupational spaces.
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    Oil price movements and agricultural production from heterogeneous sub-sectors: Analysing the Dutch disease in an African resource-rich economy
    (John Wiley and Sons Inc, 2023) Ike, George N.; Usman, Ojonugwa; Köksal, Cihat
    The economy of a developing country like Nigeria has evolved from a strong dependence on agricultural exports in the 1960s to an unhealthy reliance on crude oil exports. This has led to a large agricultural trade deficit that requires a better understanding of the dynamic relationship between oil price booms and agricultural production. To this end, the study not only isolates the effect of oil price movements on agricultural production from heterogeneous sub-sectors in Nigeria but also tests for Dutch disease symptoms using annual data from 1970 to 2019. Employing the auto-regressive distributed lag (ARDL) cointegration and dynamic simulations as well as dynamic Granger causality techniques, the study shows that in the long run, oil price booms affect the food sector and the livestock sector heterogeneously. An increase in the oil price undercuts the production performance of the food sector. Also, because of the strong linkage between domestic livestock production and the global livestock market, an increase in domestic production has a weak predictive content for oil price booms. The policy implications of these findings include the sterilization of oil revenues outside the country and collaboration with foreign investors to provide much-needed investment in the agricultural sector through various incentive schemes.
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    Operational behaviours of multinational corporations, renewable energy transition, and environmental sustainability in Africa: Does the level of natural resource rents matter?
    (Elsevier, 2023) Balcilar, Mehmet; Usman, Ojonugwa; Ike, George N.
    The pollution haven hypothesis postulates a transfer of unsustainable production practices by multinational corporations (MNCs) to their operational bases in developing economies with lax environmental regulations. However, little is known about the role of natural resource rents in this relationship. To this end, the study empirically investigates the interaction effects of the operational behaviours of multinational corporations (MNCs) through foreign direct investment (FDI) and natural resource rents on environmental sustainability in 34 African countries over the period 1990 to 2017. Identifying two main pathways through which this can occur, we specify two models with CO2 emissions and renewable energy as separate response variables. Employing both the System Generalized Method of Moments (SYS-GMM) and Method of Moments Quantile regression (MM-QR) estimation techniques, the empirical results suggest that natural resource rents play a vital moderating role in determining how the operational behaviours of MNCs affect environmental sustainability. The interaction term of foreign investment and natural resource rents correlates negatively and positively with environmental pollution and renewable energy transition respectively. This suggests that at a certain level of natural resource rents, the strength of the operational behaviours of MNCs to increase environmental degradation is reduced. Furthermore, in countries with lower levels of natural resource rents, an increase in foreign investment de teriorates the environment, while in countries with lower levels of foreign investment, an increase in resource rents degrades the environment. The dynamics follow the reverse direction when renewable energy is the response variable. These findings, therefore, have policy implications for achieving Africa’s goal of carbon neutrality.