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Environmental and Energy Efficiency of EU Electricity Industry: An Almost Spatial Two Stages DEA Approach

Simona Bigerna, Maria Chiara D’Errico, and Paolo Polinori

Year: 2019
Volume: Volume 40
Number: The New Era of Energy Transition
DOI: 10.5547/01956574.40.1.sbig
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Abstract:
This study analyzes the relationship between the energy efficiency and the stringency of environmental and market regulation in the electricity sectors has been analyzed. Using 19 European Union countries (2006-2014), we decomposed the environmental policy stringency index, the OECD regulatory indicators and the total factor productivity growth to highlight the complexity of the relations between electricity sector and regulatory policies. In the first stage we compute the three main components of total factor productivity. These three efficiency measures are used in the second stage to assess the impact of the regulatory policies on the total factor productivity also controlling for spatial effect. Results suggest that market and environmental regulations have not unidirectional impacts on the three components of total factor productivity. Pure and scale efficiency index are negatively affected by sectorial regulation that positively affect the shift of technological frontier. Environmental policy negatively affects the shift of the efficient frontier, but has a positive effect on the scale efficiency.



Net-Zero Policy vs Energy Security: The Impact on GCC Countries

Simona Bigerna, Maria Chiara D’Errico, Paolo Polinori, and Paul Simshauser

Year: 2024
Volume: Volume 45
Number: Special Issue
DOI: 10.5547/01956574.44.SI1.sbig
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Abstract:
Gulf Cooperation Council countries have accumulated large oil portfolio revenues. However, the world economy is seeking to reduce carbon emissions, and in turn, its reliance on fossil fuel resources through investments in renewable energy resources. The aim of this research is to analyze oil portfolio risk from an exporters' perspective, highlighting how relevant determinants, such as the increasing penetration of renewables in the importer counterparties, and financial and policy uncertainty, increase the volatility of oil export portfolios.We construct oil portfolios for four Gulf Cooperation Council countries (Kuwait, Oman, Saudi Arabia, United Arab Emirates) from 2008 to 2018, and compute volatility spillovers à la Diebold and Yilmaz. Then, the effects of policy and economic variables on volatility spillover indices are estimated using different panel linear regression models.We find rising renewable market shares significantly affects oil export portfolio risks and reduces adverse impacts on importing countries of oil market fluctuations.





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