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In line with the pursuit of clean and affordable energy, our study contributes to the United Nations Sustainable Development Goals (UNSDGs-7 and -13) and the global fight against climate change by offering evidence-based insights. We conducted a panel analysis of BRICS (Brazil, the Russian Federation, India, China, and South Africa) economies to investigate the relationship between financial development and renewable energy utilization. Our empirical findings highlight a positive statistical association between economic growth and renewable energy consumption, indicating that higher economic growth correlates with increased renewable energy adoption. Similarly, significant positive relationships are observed between the consumer price index and domestic credit with renewable energy consumption. Moreover, our study also uncovers a counterintuitive relationship between foreign direct investment and renewable energy consumption. These results provide valuable insights into the determinants of renewable energy consumption in BRICS countries. From a policy perspective, we advocate for robust strategies to promote the adoption and utilization of renewable energy sources alongside the implementation of policies encouraging the uptake of clean technologies. Such measures can spur economic growth and contribute to achieving low-carbon targets and sustainability goals within the BRICS economies. Practical steps, including incentives like feed-in tariffs and subsidies, can further enhance the cost-effectiveness of renewable energy adoption in the investigated bloc.

Abstract This paper investigates the role of nuclear energy in promoting ecological sustainability in India, focusing on three ecological indicators: ecological footprint (EF), CO2 emissions (CO2), and load capacity factor (LF). In addition to nuclear energy, the study considers the influence of gas consumption and other drivers of ecological sustainability using data spanning from 1970 to 2018. The analysis also takes into account the impact of the 2008 global financial crisis on the model, employing the autoregressive distributed lag (ARDL) and frequency domain causality approaches to assess the relationships. Unlike previous studies, this research evaluates both the Environmental Kuznets Curve (EKC) and load capacity curve (LCC) hypotheses. The ARDL results support the validity of both the EKC and LCC hypotheses in the Indian context. Furthermore, the findings reveal that nuclear energy and human capital contribute positively to ecological quality, while gas consumption and economic growth have a negative impact on ecological sustainability. The study also highlights the increasing effect of the 2008 global financial crisis on ecological sustainability. Additionally, the causality analysis demonstrates that nuclear energy, human capital, gas consumption, and economic growth can serve as predictors of long-term ecological sustainability in India. Based on these findings, the research presents policy recommendations that can guide efforts towards achieving SDGs 7 and 13.

Abstract The study’s primary objective is to advance the environmental management research field by examining the relationship between corporate social responsibility (CSR), environmental and financial performance while considering the mediating effect of sustainable development and green innovation. In addition, the study also analyzes the moderating effect of green innovation actions and green innovation strategies. Employees in the manufacturing sector in Pakistan completed a self-administered survey. Data gathered from 497 employees was analyzed using the structural analysis. The study results show that corporate social responsibility to the environment (CSREM), corporate social responsibility to employees (CSREM), to the community (CSRCO), and to the consumers (CSRCO) positively influences environmental performance (EVP) and financial performance (FP). Environmental sustainable development (ESD) and green innovation (GI) mediate the relationship between CSR, environmental, and firm financial performance. Green innovation strategies (GINS) and green innovation actions (GINAs) moderate the relationship between a firm’s environmental and financial aspects. The study deepens the understanding of CSR through an integrated model of mediator and moderator variables. It attempts to boost the firms’ performance (i.e., environmental, and financial) by applying the concept of green innovation and sustainable development. This study brings significant results for manufacturing firms, managers, entrepreneurs, policymakers, practitioners, employees, and other stakeholders. The study’s outcomes make the stakeholders adopt CSR consideration to achieve ecological and financial harmony in developing economies.

Coal is crucial for economic progress but equally baneful to the environment. Thus, the coal consumption-environmental sustainability nexus attracted the attention of both policymakers and scholars. This study evaluates the coal consumption-environment nexus in developed and developing countries over the period 2000–2020. We used panel data econometric techniques and the Augmented Anderson–Hsiao (AAH) two-step GMM estimator to assess and compare the impact of coal consumption on CO2. The findings revealed that the consumption of coal aggravates environmental pollution and hinders environmental sustainability. Thus, this study confirms the environment-destroying effect of coal consumption. However, the findings reveal that the negative consequence of coal consumption on the environment is more for the sample of developed countries than that of developing countries. This suggests that coal use harms the environment developed economies than the developing countries. Specifically, we found that the carbon emissions emanating from a one percent (1%) increase in coal consumption of the developed countries is about six-fold more than that of the developing countries. Therefore, this study suggests a gradual phase-out, rather than sudden phase-out, of coal consumption with greater emphasis on developed countries. The implementation of the coal phase-out policy and the removal of fossil fuel subsidies should start with the developed countries or be made more stringent in such countries than the developing economies. The developed countries should relinquish a greater proportion of their coal consumption than the developing countries.

Nuclear energy has the potential to play an influential role in energy transition efforts than is now anticipated by many countries. Realizing sustainable human development and reducing global climate crises will become more difficult without significantly increasing nuclear power. This paper aims to probe the role of nuclear energy, external debt, and financial globalization in sustaining human development and environmental conditions simultaneously in BRICS (Brazil, Russia, India, China, and South Africa) countries. This study applied a battery of second-generation estimation approaches over the period from 1990 to 2019. These methods are useful and robust to cross-countries dependencies, slope heterogeneity, parameters endogeneity, and serial correlation that are ignored in conventional approaches to generate more comprehensive and reliable estimates. The empirical findings indicate that nuclear energy and financial globalization contribute to human development, whereas external debt inhibits it. Similarly, financial globalization accelerates ecological deterioration, but nuclear energy and external debt promote environmental sustainability. Moreover, the study reveals bidirectional feedback causalities between human development, carbon emissions and nuclear energy consumption. The study offers useful policy guidance on accomplishing sustainable and inclusive development in BRICS countries.

Achieving sustainable development requires an increasing share of green technologies. World energy demand is expected to rise significantly especially in developing economies. The increasing energy demands will be entertained with conventional energy sources at the cost of higher emissions unless eco-friendly technologies are used. This study examines the asymmetric effects of nuclear energy on carbon emissions for Pakistan from 1974 to 2019. Augmented Dickey-Fuller (ADF) and Phillips Perron (PP) unit root tests suggest that variables are integrated of order one and bound test of Autoregressive Distributed Lag (ARDL) and nonlinear ARDL confirm a long-run relationship among selected variables. The ARDL, Fully Modified Ordinary Least Squares (FMOLS), and Dynamic Ordinary Least Squares (DOLS) results show that the coefficient of nuclear energy has a negative and significant impact on emissions in both short and long run. Further, the NARDL finding shows that there exists an asymmetric long-run association between nuclear energy and CO2 emissions. The vector error correction method (VECM) results indicate that there exists a bidirectional causal relationship between nuclear energy and carbon emissions in both the short and long run. Additionally, the impact of nuclear energy on ecological footprint has been examined and our findings remain robust.

This study evaluates the explosive behavior and Granger causality episodes in manufacturing job postings in the United States (JOBPUS) and COVID-19-induced uncertainty (COVIDEMV). This study applied the novel unit root tests with explosive behavior, and the novel time-varying Granger causality test for a sample period ranging from 1 January 2020 to 29 July 2022. Further, this study used date stamping to identify the subperiods of the explosive behavior and causality. The findings revealed that JOBPUS exhibits explosive behavior, with several episodes of exuberance (bubbles) across the sample period while COVIDEMV does not exhibit explosivity during the period. However, the results of the causality provide evidence of bidirectional causality, with several episodes between the variables. Moreover, the episodes of the explosivity and causality coincide with significant episodes in the history of the COVID-19 pandemic worldwide and in the United States particularly, such as the date when United States recorded a COVID-19-related death toll of over 100,000 people for the first time, after the presidential election, after Halloween celebrations, after the discovery and administration of COVID-19 vaccines as well as the discovery of the Delta and the Omicron variants of COVID-19. Therefore, the time-series characteristics of JOBPUS and its causal nexus with COVIDEMV largely depend on the intensity of the instability caused by the pandemics. Hence, explosivity and time-varying causal behavior should necessarily be accounted for when modelling the job market conditions in the United States, particularly during pandemic-related crises.

The purpose of this study is to empirically re-investigate the money-prices nexus for Malaysia through the cointegration and causality techniques. This study covered the monthly data from 1971:M1 to 2014:M8. The Maki multiple breaks cointegration test suggests that the variables are cointegrated. Furthermore, the MWALD test shows a unidirectional causal relationship run from money supply (M2) to aggregate prices, meaning that only the monetarist’s view exist in the Malaysian economy. However, the time-varying causality tests indicate that inflation is not always a monetary phenomenon in Malaysia. Therefore, the contractionary monetary policy may not an effective instrument in managing inflationary behaviour in Malaysia.

This study attempt to fill the research gap by figuring out the dynamic effects of foreign capital inflows effect on renewable energy and non-renewable consumption by using the time series non-linear ARDL approach for BRICS from 1991 to 2019. Non-linear ARDL estimates show that positive change in foreign capital inflows has a positive effect on renewable consumption in Brazil, India, and South Africa in long run. Also, the negative change in foreign capital inflows exhibits negatively liked with renewable energy consumption in BRICS economies, except Russia in long run. We find that positive shock in foreign capital inflows tends to increase non-renewable energy consumption in BRICS except India in the long run. Finding suggests that negative change in foreign capital inflows has negative impacts on non-renewable energy consumption in India and Brazil, while the positive effect in only China in the long run.

The relationship between interest rates and inflation which is called Fisher effect has been investigated in both theoretical and empirical economics in vast literature. The contribution of this paper to the literature is to test the Fisher effect for the selected four transition economies that are also new EU member states. The empirical analysis is conducted by allowing for a structural break that takes place in year 2004. In this study, a case-wise bootstrap approach empirical method which developed by Hatemi-J and Hacker (2005) is used and the results support a tax adjusted Fisher effect in the presence of a structural break.

The purpose of this study is to empirically re-investigate the money-prices nexus for Malaysia through the cointegration and causality techniques. This study covered the monthly data from 1971:M1 to 2014:M8. The Maki multiple breaks cointegration test suggests that the variables are cointegrated. Furthermore, the MWALD test shows a unidirectional causal relationship run from money supply (M2) to aggregate prices, meaning that only the monetarist's view exist in the Malaysian economy. However, the time-varying causality tests indicate that inflation is not always a monetary phenomenon in Malaysia. Therefore, the contractionary monetary policy may not an effective instrument in managing inflationary behaviour in Malaysia. Keywords: Cointegration; Inflation; Money; Recursive regression; Rolling regression JEL Classifications: C22; E31; E51

The purpose of this study is to empirically re-investigate the money-prices nexus for Malaysia through the cointegration and causality techniques. This study covered the monthly data from 1971:M1 to 2014:M8. The Maki multiple breaks cointegration test suggests that the variables are cointegrated. Furthermore, the MWALD test shows a unidirectional causal relationship run from money supply (M2) to aggregate prices, meaning that only the monetarist's view exist in the Malaysian economy. However, the time-varying causality tests indicate that inflation is not always a monetary phenomenon in Malaysia. Therefore, the contractionary monetary policy may not an effective instrument in managing inflationary behaviour in Malaysia. Keywords: Cointegration; Inflation; Money; Recursive regression; Rolling regression JEL Classifications: C22; E31; E51

The purpose of this study is to empirically re-investigate the money-prices nexus for Malaysia through the cointegration and causality techniques. This study covered the monthly data from 1971:M1 to 2014:M8. The Maki multiple breaks cointegration test suggests that the variables are cointegrated. Furthermore, the MWALD test shows a unidirectional causal relationship run from money supply (M2) to aggregate prices, meaning that only the monetarist's view exist in the Malaysian economy. However, the time-varying causality tests indicate that inflation is not always a monetary phenomenon in Malaysia. Therefore, the contractionary monetary policy may not an effective instrument in managing inflationary behaviour in Malaysia. Keywords: Cointegration; Inflation; Money; Recursive regression; Rolling regression JEL Classifications: C22; E31; E51

This study makes an attempt to examine the long run relationship between the official and black market exchange rates using monthly data for a sample of 13 Middle East and Northern African (MENA) countries from 1970 to 1998. Using the Pool Mean Group framework, the article provides evidence on proportional long run relationship between black and official market exchange rates in sample countries. The positive common long run official exchange rates (OEX) elasticity is statistically significant and slightly greater than one. The hypothesis of portfolio balance model is confirmed, implying that there exists a proportional long run equilibrium relationship between official exchange rates and black market exchange rates. However, the short run dynamics remain heterogeneous across countries.

The rapid agricultural development and mechanization of agronomic diligence has led to a significant growth in energy consumption and CO2 emission. Agriculture has a dominant contribution to boosting the economy of any country. In this paper, we demonstrate carbon dioxide emissions’ association with cropped area, energy use, fertilizer offtake, gross domestic product per capita, improved seed distribution, total food grains and water availability in Pakistan for the period of 1987-2017. We employed Augmented Dickey-Fuller and Phillips-Perron unit root tests to examine the variables’ stationarity. An autoregressive distributed lag (ARDL) bounds testing technique to cointegration was applied to demonstrate the causality linkage among study variables from the evidence of long-run and short-run analyses. The long-run evidence reveals that cropped area, energy usage, fertilizer offtake, gross domestic product per capita and water availability have a positive and significant association with carbon dioxide emissions, while the analysis results of improved seed distribution and total food grains have a negative association with carbon dioxide emissions in Pakistan. Overall, the long-run effects are stronger than the short-run dynamics, in terms of the impact of explanatory variables on carbon dioxide emission, thus making the findings heterogeneous. Possible initiatives should be taken by the government of Pakistan to improve the agriculture sector and also introduce new policies to reduce the emissions of carbon dioxide.

Using panel data for 21 Latin Americancountries over the period 1975–2004, this paper analyzes macroeconomic effects of IMF programmes by using GEE methodology. In line with the results of previous studies, it is shown that these programmes have positive effects on the balance of payments, current account and investment. However, they negatively affect budget deficit, per capita GDP, FDI, inflation and consumption.

In this paper we review the literature on the finance-growth nexus and investigate the causality between financial development and economic growth in Sub-Saharan Africa for the period 1975-2005. Using panel co-integration and panel GMM estimation for causality, the results of the panel co-integration analysis provide evidence of no long-run relationship between financial development and economic growth. The empirical findings in the paper show a bi-directional causal relationship between the growth of real GDP per capita and the domestic credit provided by the banking sector for the panels of 24 Sub-Saharan African countries. The findings imply that African countries can accelerate their economic growth by improving their financial systems and vice versa.

The aim of this paper is to examine effectiveness of devaluation on the trade balance in four countries: Argentina, Brazil, Mexico and Peru. We use the Johansen-Juselius cointegration test and impulse response function to estimate the long-run and shortrun effects of devaluation on the trade balance. The estimated results suggest that depreciation improve the trade balance in the long run for the case of Argentina and Peru, and in the short-run there has been J-curve in Argentina and Peru. In addition, the cointegration is found among the four variables (trade balance, domestic income, foreign incomes and real exchange rate) in the case of Argentina and Peru. The results also indicate that there is no cointegration relationship between these variables for Brazil and Mexico. The conclusion of the paper is that the evidence of the J-curve pattern was found for Argentina and Peru only.

This study investigates the long-run relationshipbetween the real GDP and internationaltourism in Turkey during the time period 1987-2007.For this purpose, tourism-led growth hypothesis(TLG) is tested by using two different methods:a vector error correction model (VEC) and anautoregressive distributed lag model (ARDL).The results of the Johansen cointegration test aswell as of the ARDL bound test show that thereis no unique long-term or equilibrium relationshipbetween the real GDP and international tourism.Therefore, the TLG hypothesis cannot be inferredfor the Turkish economy because no cointegrationexists between international tourism and the realGDP. Moreover, Granger causality test and errorcorrection model cannot be run any further in thelong-term period.

In this study, the population growth of the brain tumor GBM, is constructed such as( )( ( ) ( [ ] )) ( ) ( [ ] ) ( ) ( [ ] )( )( ( ) ( [ ] )) ( [ ] ) ( ) [ ]1 1 1 2 1 12 2 1 2 1 2d = ( ) rx t R x t x t x t y t d x t x tdd =r y t R y t y t x t y t d y( ) ( t )dx px tty t ytα α γβ β γ⎧ + − − ⎡ ⎤ − ⎡ ⎤ − ⎡ ⎤ ⎣ ⎦ ⎣ ⎦ ⎣ ⎦ ⎪⎪⎨⎪− − ⎡⎣ ⎤⎦ + ⎡⎣ ⎤⎦ − ⎡⎣ ⎤⎦ ⎪⎩(A)where t = 0 , the parameters 1 2 1 2 1 1 2 1 2 1 α ,α , β , β ,γ , p, d , d ,R , R , r and 2 r are positivereal numbers and [[t]] denotes the integer part of t∈[0,8) . System (A) explains a tumorgrowth, that produces after a specific time another tumor population with different growth rateand different treatment susceptibilities. The local and global stability of this model is analyzedby using the theory of differential and difference equations. Simulations and data of GBM givea detailed description of system (A) at the end of the paper.

The relationship between interest rates and inflation which is called Fisher effect has been investigated in both theoretical and empirical economics in vast literature. The contribution of this paper to the literature is to test the Fisher effect for the selected four transition economies that are also new EU member states. The empirical analysis is conducted by allowing for a structural break that takes place in year 2004. In this study, a case-wise bootstrap approach empirical method which developed by Hatemi-J and Hacker (2005) is used and the results support a tax adjusted Fisher effect in the presence of a structural break. Keywords: Fisher Effect; New EU Member States; Monetary Policy; Transition Economies. JEL Classifications: E40; E43; E47; F36; P24

The relationship between interest rates and inflation which is called Fisher effect has been investigated in both theoretical and empirical economics in vast literature. The contribution of this paper to the literature is to test the Fisher effect for the selected four transition economies that are also new EU member states. The empirical analysis is conducted by allowing for a structural break that takes place in year 2004. In this study, a case-wise bootstrap approach empirical method which developed by Hatemi-J and Hacker (2005) is used and the results support a tax adjusted Fisher effect in the presence of a structural break. Keywords: Fisher Effect; New EU Member States; Monetary Policy; Transition Economies. JEL Classifications: E40; E43; E47; F36; P24

The relationship between interest rates and inflation which is called Fisher effect has been investigated in both theoretical and empirical economics in vast literature. The contribution of this paper to the literature is to test the Fisher effect for the selected four transition economies that are also new EU member states. The empirical analysis is conducted by allowing for a structural break that takes place in year 2004. In this study, a case-wise bootstrap approach empirical method which developed by Hatemi-J and Hacker (2005) is used and the results support a tax adjusted Fisher effect in the presence of a structural break. Keywords: Fisher Effect; New EU Member States; Monetary Policy; Transition Economies. JEL Classifications: E40; E43; E47; F36; P24

This study makes an attempt to examine the long run relationship between the official and black market exchange rates using monthly data for a sample of 13 Middle East and Northern African (MENA) countries from 1970 to 1998. Using the Pool Mean Group framework, the article provides evidence on proportional long run relationship between black and official market exchange rates in sample countries. The positive common long run official exchange rates (OEX) elasticity is statistically significant and slightly greater than one. The hypothesis of portfolio balance model is confirmed, implying that there exists a proportional long run equilibrium relationship between official exchange rates and black market exchange rates. However, the short run dynamics remain heterogeneous across countries. Keywords: Black market exchange rate; official exchange rates; Panel data; Panel cointegration; MENA countries JEL Classifications: C23; F31

This study makes an attempt to examine the long run relationship between the official and black market exchange rates using monthly data for a sample of 13 Middle East and Northern African (MENA) countries from 1970 to 1998. Using the Pool Mean Group framework, the article provides evidence on proportional long run relationship between black and official market exchange rates in sample countries. The positive common long run official exchange rates (OEX) elasticity is statistically significant and slightly greater than one. The hypothesis of portfolio balance model is confirmed, implying that there exists a proportional long run equilibrium relationship between official exchange rates and black market exchange rates. However, the short run dynamics remain heterogeneous across countries. Keywords: Black market exchange rate; official exchange rates; Panel data; Panel cointegration; MENA countries JEL Classifications: C23; F31

This study makes an attempt to examine the long run relationship between the official and black market exchange rates using monthly data for a sample of 13 Middle East and Northern African (MENA) countries from 1970 to 1998. Using the Pool Mean Group framework, the article provides evidence on proportional long run relationship between black and official market exchange rates in sample countries. The positive common long run official exchange rates (OEX) elasticity is statistically significant and slightly greater than one. The hypothesis of portfolio balance model is confirmed, implying that there exists a proportional long run equilibrium relationship between official exchange rates and black market exchange rates. However, the short run dynamics remain heterogeneous across countries. Keywords: Black market exchange rate; official exchange rates; Panel data; Panel cointegration; MENA countries JEL Classifications: C23; F31

Waste management has been a great problem globally for at least five decades. Some of the developed countries could initiated certain processes to benefit from the waste. In this way, countries could both got rid of waste and they could exploit from it and used waste in different ways such as heating, recycling, etc. The situation became even worse during the coronavirus disease 2019 (COVID-19) pandemic. The COVID-19 pandemic has altered global waste generation dynamics and thus became one of the most important issue for all countries for now and for future. Actually, healthcare waste is all the waste generated by healthcare facilities, medical laboratories and biomedical research facilities, as well as waste from minor or scattered sources. However, during the pandemic, masks, increased amounts of contaminated waste including gloves, other protective equipment, and along with non-contaminated materials, many types of additional medical and hazardous waste are produced. These contaminated wastes not only dirts the environment, but also may cause the pandemic spread. The inadequacies and inefficiencies of current waste management system to deal with the increased dependence on plastic could aggravate its mismanagement and leakage into the environment, thus triggering a new environmental crisis. Therefore, this study will highlights the possible effects of COVID-19 on the waste management and environment.

In the current study, effects of two different underhood geometry modifications namely; fan position relative to shroud and fan tip clearance, on airflow through an agricultural tractor engine cooling system are investigated by utilizing CFD modeling. For the characterization of each modification, the underhood components are reduced to a domain of cooling systems including only fan, shroud, and radiator that allows saving in computational time and cost. The models are validated using a custom designed underhood flow setup, where hotwire velocity measurements at proximity to the radiator are conducted. The mass flow rate and the uniformity of the airflow through the radiator are quantified as performance parameters. For the former modification, position of fan relative to shroud, the computations are performed for the percentages of fan projection into shroud (FPiS) varying from 78% to 0% at fan rotational speeds of 2060 and 2800 rpm. The optimum fan location is found to be around 56–60% for both rotational speeds that leads 8% increase in mass flow rate compared with the pre-design location of 74%. In addition, a noticeable reduction in the relative magnitude of the RMS velocity through the radiator is obtained for the moderate FPiS values. For the latter modification, fan tip clearance, the computations are performed for the tip clearance values varying from 5.25to 12 mm at a fan rotational speed of 2060 rpm. As the tip clearance decreases up to 6 mm, air mass flow rate can be improved by 7%. However, further reduction in tip clearance does not improve the air mass flow rate instead it decreases, suggesting an optimum tip clearance value. The results suggest that the proper geometrical modifications in engine cooling systems might induce significant improvement in the aforementioned performance indicators.