Luis is a Research Fellow in the Methods of Benefit Valuations team at HERU. Dr. Loria has a PhD in Economics from the University of Aberdeen which explored preferences for low emisison buses using the Aberdeen Hydrogen Bus Project as a case study. His research includes the development of Decision Aid Tools using discrete choice experiments and is currently part of a team developing one for the management of persistent pain at the pharmacy level. Luis has an interest in the use of reference-dependent choice models and has taken part in the design of discrete choice experiments that apply these in the environmental economics field. He has a BSc in Civil Engineering from the Tecnológico de Monterrey (México) and an MSc in Environmental Economics and Environmental Management from the University of York. Luis also has a research interest in the valuation of air quality (and adverse health outcomes) using stated and revealed preference methods.