[1] Univ Rovira & Virgili, Dept Econ, ECO SOS, Univ 1, Reus 432014, Spain
[2] Univ Antonio Nebrija, ECEMIN, Madrid, Spain
[3] Autonomous Univ Barcelona, Inst Environm Sci & Technol, ICTA UAB, Barcelona, Spain
[4] ICREA, Catalan Inst Res & Adv Studies, Barcelona, Spain