1. Energy Center, Faculty of Physical and Mathematical Sciences, University of Chile, Santiago 8370450, Chile
2. Facultad de Ciencias Económicas y Administrativas, Universidad Católica de la Santísima Concepción, Concepción 4090541, Chile
3. Center of Economics for Sustainable Development (CEDES), Faculty of Economics and Government, Universidad San Sebastian, Concepción 4080871, Chile