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The main objective of the quantitative study is to ascertain the relationship between the circular economy (CE) and carbon emissions. And also, the study examines the threshold beyond which the quality of governance reduces carbon emissions.

The autoregressive distributed lag approach is employed for the econometrics analysis. The study employed quarterly data from 2006Q1 to 2017Q4 on Ghana.

The results indicated that, although the CE had a positive and significant effect on carbon emissions, the moderating term had an adverse and significant effect on carbon emissions. This result suggests that to mitigate carbon emissions, a robust and efficient quality of institutions should be sustained. Finally, the study also identified a quality of governance threshold of 1.155 beyond which a shift to a CE would result in a reduction in carbon emissions.

The study recommends that policymakers should initiate policies that would enhance quality governance.

The main contributions of the study are that the paper ascertained the threshold beyond which quality of governance assists circular economic practices to mitigate carbon emissions. Also, the study revealed that quality of governance is a catalyst to promote circular economic practices in reducing carbon emissions. Finally, the study ascertains the long-run effect of the variables of interest on carbon emissions.

The purpose of this study is to test the modulating role and threshold of governance quality in the cost of living–energy poverty nexus.

Two-step System Generalized Methods of Moment empirical model with linear interaction between cost of living and governance quality was estimated. This study used data on 40 African countries over 20 years (2000–2019).

The paper shows that the conditional effect of inflation on energy poverty is negative. Thus, governance quality acts as a moderator on the relationship between inflation and energy poverty beyond a threshold. The study's principal practical implication is that governance quality reverses inflation's positive unconditional effect on energy poverty, and governance quality may be improved beyond specific policy-defined thresholds to achieve the desired goal of lowering energy poverty. Nonetheless, governance quality at initial stages would not drive the needed reduction in energy poverty unless it goes beyond the threshold of 0.03, 0.02 and 0.07.

This study recommends that policymakers should initiate policies that would ensure increased access to clean energy.

This study's main contributions are that the authors estimated the threshold beyond which governance quality reverses the adverse impact of inflation on energy poverty. Further, the authors have shown that governance quality is a catalyst to reduce energy poverty.

The purpose of this paper is to investigate the effect of financial development on the Doing Business and capital flight contagion. And further, this study determines the threshold beyond which financial development reduces capital flight.

A two-step system generalized methods of moment empirical model with linear interaction between Doing Business and financial development was estimated. This study used data on 26 countries over 12 years (2004–2015).

The main results indicated that, although Doing Business had a significant positive effect on capital flight, the interactive term had a significant adverse effect on capital flight. This outcome suggests that to reduce capital flight, a well-reformed and efficient business environment should be embedded with an efficient, stable and well-developed financial sector. In addition, the authors found only South Africa has a robust financial framework beyond the threshold of 0.383, whereas Congo, Rep., Rwanda, Malawi, Sierra Leone and Congo, Dem. Rep. had the weakest financial system and sector in Sub-Saharan Africa.

This study recommends that policymakers should initiate policies that would enhance financial development.

This study’s main contributions are that the authors estimated the threshold beyond which financial development helps the business environment reduce the rate of capital flight. Further, the authors have shown that financial development is a catalyst to propel the deterioration powers of the business environment against capital flight. Also, the authors have estimated the long-run effect of the variables of interest on capital flight.