Amidst the adverse effects of the existing linear model on economic, social, and environmental aspects, the circular economy has emerged as a more sustainable alternative for economic growth and environmental sustainability. Further, the increasing significance of the circular economy as a means to achieve sustainability has prompted researchers to suggest various approaches. In this study, we employed a systematic literature review to present a unified perspective on the concept of circular economy and emphasize the connection of it with eco-innovation. We found that the last three years have witnessed a sudden rise in the publications related to a circular economy, stating the rise in interest of researchers towards a circular economy. While in its nascent phase of execution, much research has been carried out on the importance of adopting a circular economy for achieving sustainability. However, most researchers have failed to explore the contribution of the circular economy in the UN sustainable development strategies (SDGs) and the role of eco-innovation in the circular economy. Therefore, this research is novel, and we explored the role of circular economy and eco-innovation towards sustainability through a systematic literature review. This research indicated that while developed countries have shifted to a circular economy, developing countries need to transition to a circular economy for sustainable benefits. A correlation was also found between the circular economy and some SDGs. The results emphasized that the incorporation of eco-innovations can help in mitigating the environmental consequences of production and consumption activities. It also sheds light on notable instances of eco-innovations that have been developed for deployment in the circular economy. This research will be helpful to industries, universities, and other major sections of society in developing circular economy practices in their core processes and ensuring the attainment of sustainable development goals.

This study has attempted to re-investigate the impact of fiscal deficit (FD) on current account deficit (CAD) (also known as twin deficit hypothesis) in India from 1970–1971 to 2018–2019 in the presence of private saving–investment gap (SI) and exchange rate (EXR). For the empirical investigation, the study has employed the nonlinear autoregressive distributed lag (NARDL) approach to cointegration. The NARDL results found the evidence of an asymmetric effect of FD, SI and EXR on CAD in the long run only. The obtained results support the traditional views of the Keynesian approach that FD has a positive impact on CAD, validates the existence of the ‘Twin Deficit Hypothesis’ in India. Further, results also depict that SI has a positive effect on CAD, whereas EXR has an adverse impact on CAD. From a policy standpoint, the asymmetric impact of FD on CAD provides strong reasons for conceiving policies that are adaptable to changing dynamics in internal as well as external sectors.

The existing literature covers the topic of environmental pollution, but there is a scarcity of research that specifically examines the factors contributing to financial losses caused by carbon emissions. In this perspective, this ongoing analysis provides an understanding of the impact of environmental technology, energy efficiency, renewable energy consumption, natural resources, and economic growth on carbon dioxide damage in Organization for Economic Cooperation and Development (OECD) countries from 2000 to 2021 using the “Method of Moments Quantile Regression (MMQR)”, and “Dumitrescu–Hurlin (D-H)” causality test. The findings from the MMQR revealed that environmental control technology, renewable energy consumption, and energy efficiency contribute to reducing carbon dioxide damage at different quantiles. It was also found that economic growth and natural resources contribute to the increase in carbon dioxide damage in various quantities. Additionally, a one-way causality result was obtained from environmental technology, energy efficiency, renewable energy consumption, natural resources, and economic growth towards carbon dioxide damage. These results indicate that policymakers in OECD nations should provide suggestions on the efficient utilization of renewable energy sources and environmentally friendly technologies to minimize carbon dioxide damage.

Amid the Covid-19 crisis, one of the biggest challenges that developing and even developed countries faced was the disruption in the global supply chain. In past decades, there has been an over-reliance on China, the largest manufacturing hub. But when the pandemic hit the world, subsequent lockdowns were imposed. This greatly affected the efficiency of supply chain management. The paper discusses the importance of the global supply chain and how Covid-19 affected the chain. Also, the difference between the pre-Covid era and the post-Covid era has been studied so to understand the necessity of moving from efficiency to resilience.

Aquaculture is flourishing in the Nordic region, namely in Norway and Denmark since their coastline geographic positioning. Conversely, despite the potential for utilizing marine resources and wind energy through extensive research and development (R&D), these countries nonetheless face ongoing environmental challenges due to large-scale aquaculture and maritime operations. Nevertheless, there has been insufficient focus on comprehending the consequences of aquaculture production, marine shipping, wind energy generation, and blue R&D on greenhouse gas (GHG) emissions so far. Thus, this work aims to address this research gap in the context of Norway and Denmark between 2000Q1 and 2021Q4 by employing "quantile-on-quantile regression (QQR) and wavelet coherence (WC)". The QQR results demonstrate that aquaculture production in Denmark harms the environment at lower quantiles but becomes positive at higher quantiles, indicating that the aquaculture operation leads to an increase in GHG emissions. Aquaculture production in Norway has a detrimental effect on GHG emissions across several quantiles. The results can be attributed to the stringent regulation and promotion of sustainable aquaculture techniques in Norway. Maritime shipping exhibits a positive effect on the emissions of GHG in both nations. Moreover, blue R&D appears to be more significant in Norway compared to Denmark when it comes to decreasing GHG emissions. Finally, wind energy generation has varying effects on GHG emissions across different quantiles for both countries. It is recommended that both countries encourage the implementation of sustainable aquaculture practices by making significant investments in blue R&D for a healthier environment.