All authors jointly conceived and designed the study. M.B. contributed to data processing
and drafting the manuscript. M.P.P.-R. contributed to data collection and paper revision. A.S.-B. contributed to
data analysis and paper revision.
The second and third authors wish to acknowledge the financial support received from the
ECO2014-56399-R Project of the Spanish Ministry of Economy and Competitiveness, from the Chair of Energy and
Environmental Economics at the University of Seville (Cátedra de Economía de la Energía y del Medio Ambiente,
Universidad de Sevilla) and from the SEJ 132 project of the Andalusian Regional Government of Andalusia
(Spain). Authors are also grateful for the financial support received from the Department of Economic Analysis
Energies
2018, 11, 1656
15 of 18
and Economic Policy at the University of Seville (Departamento de Análisis Económico y Economía Política,
Universidad de Sevilla).
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