scholarly journals A Resampling Slack-Based Energy Efficiency Analysis: Application in the G20 Economies

Energies ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 67
Author(s):  
Dan Wu ◽  
Ching-Cheng Lu ◽  
Pao-Yu Tang ◽  
Miao-Ling Wang ◽  
An-Chi Yang

In order to have a sustainable economic and social development, it is important to balance economic growth and ecological environmental damage. In this article, we used the resampling model under the triangular distribution to evaluate energy efficiency, because the input/output value may have measurement errors, time lag factors, arbitrariness, and other problems, causing their own DMU to change. After these factors were taken into consideration, the resampled input/output was estimated because a super-SBM efficiency value was placed in the confidence interval. From the past-present data, for the estimated data change, the time weight was provided according to the Lucas series, and the super-SBM was time-weighted. We applied this model to a dataset of G20 economies from 2010 to 2014. To the best of our knowledge, very few studies have applied the DEA method with resampling to analyze energy efficiency. Thus, our study contributes to the methodologies for energy efficiency evaluation. We found that the overall average energy efficiency is 0.653, with substantial differences between developed economies and developing economies. The most important finding is that neither overestimation nor underestimation occurred when sampling was repeated one thousand times using 95% and 80% confidence intervals, confirming the robustness of the super-SBM model. The less energy-efficient economies should adjust their energy policies appropriately and develop new clean energy technologies in the future.

Author(s):  
Celal Taşdoğan ◽  
Bilgen Taşdoğan

Turkey has realized high growth rates during the period of 2002-2011, except in 2008 and 2009 years. It is thought that the rapidly growing in the country may cause a lot of environmental damage, especially air pollution problems. In other words, the productive sectors have produced two outputs which are economic value added and air pollutants. This study used input output matrixes are to find out the strategically important sectors as it is known key sectors and weak sectors caused the environmental effects in the country. For this purpose, it has been tried to investigate air pollutant quantities which caused by the production process of the sectors in the period of 2002-2011 and performed the input-output tables for Turkey constructed in the World Input Output Database (WIOD) Project. These input-output tables include the emission satellite accounts, which are CO2 emissions and other air pollutants, respectively N2O, CH4, N2O, NOx, SOx, CO, NMVOC and NH3, disaggregated for the 34 sectors. It is expected that the outcomes of the study may contribute to sustainable growth debates and environmental policy implementations in Turkey.


2019 ◽  
Vol 4 ◽  
pp. 4
Author(s):  
Rainer Hinrichs-Rahlwes

In November 2016, the European Commission presented the Clean-Energy-for-all-Europeans Package. It consists of eight legislative proposals which should define targets and policy and regulatory frameworks for the EU's climate and energy policies up to 2030 and beyond. Recasts of the existing Renewable Energies Directive and the Energy Efficiency Directive, as well as proposals for a new energy market design, which should be fit for renewables, are among the key elements of the package, which aims at replacing the existing 2020-framework. The package includes 2030-targets for Greenhouse Gas Reduction (at least 40%), Energy Efficiency (at least 27/30%), and the share of Renewables in Gross Final Energy Consumption (at least 27%). In contrast to the 2020-framework, the EU-wide renewables-target would no longer be underpinned by binding national targets but should be reached in a joint effort with a new governance system. Since the proposal was submitted to the European Parliament and the European Council for the legislative procedures which must end in an agreement before the next elections for the European Parliament in 2019, controversial debates are taking place. The intention is to finalise the legal procedures before the end of 2018. Parliament and Council had planned to decide about their respective opinions about the various pieces by February 2018. Afterwards, probably not finished before the end of 2018, compromise negations will take place, before the whole package will eventually be accepted by both bodies. Among the most controversially discussed topics is the ambition level of the proposals and whether or not it is in line with the commitments signed by the EU and all its Member States in the context of the Paris Agreement. Industry stakeholders not only from the renewable energy sector and environmental NGOs have proposed significantly higher targets in order to stay “well below 2 °C” of global warming before the end of the century. They also suggested continuing binding national targets or − as a compromise − enacting a very strict governance system. I shall present and evaluate the state of play of the 2030-framework decision process. And I shall end with some policy recommendation still to be considered in the ongoing debate.


2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Philip Kofi Adom ◽  
Franklin Amuakwa-Mensah ◽  
Salome Amuakwa-Mensah

Abstract The United Nations Sustainable Development Goal 7 emphasizes the need for economies around the world to double their efforts in energy efficiency improvements. This is because improvements in energy efficiency can trigger economic growth and considered as one of the ‘green’ growth strategies due to its carbon free content. To this end, some empirical studies have investigated the nexus between economic growth and energy efficiency, but the effects of the latter on financial indicators have not been sufficiently studied in the literature, at least in developing economies like Africa. This study examines the effect of energy efficiency improvements on commercial bank profitability under different political regimes (i.e., autocratic and democratic political regimes); something previous literature had neglected. The study uses panel data, consisting of 43 African countries and the simultaneous System Generalized Method of Moments. We found that energy efficiency improvement is more likely to induce higher bank profitability in political institutions with the characteristics of centralization of power compared with those with decentralization of power. Furthermore, for the banking sector, the findings suggest that energy utilization behavior of clients should be included in the loan or credit valuation process. For the government, the agenda of energy efficiency should be aggressively pursued while taking cognizance of creating a political environment that weans itself from a ‘grandfathering’ behavior.


2021 ◽  
Vol 2 ◽  
pp. 100025
Author(s):  
Mark Awe Tachega ◽  
Xilong Yao ◽  
Yang Liu ◽  
Dulal Ahmed ◽  
Hui Li ◽  
...  

2012 ◽  
Vol 199 (12) ◽  
pp. 1642-1651 ◽  
Author(s):  
Suttichai Assabumrungrat ◽  
Janewit Phromprasit ◽  
Siriporn Boonkrue ◽  
Worapon Kiatkittipong ◽  
Wisitsree Wiyaratn ◽  
...  

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