Kouassi Isaac Hayaka is a PhD student in Economic and Business Sciences, specializing in Economics, at the University of Aveiro, Portugal. He holds a Master's degree in Economics from the same institution and has been a researcher in the R3EA (Renewable Energy: Economic and Externalities Assessment) project. He earned his Bachelor's degree in Economic Sciences from the State University of Londrina, Brazil, where he worked as a teaching assistant in the subjects of Economic Statistics and Mathematics for Economics. He is currently a member of the Research Unit in Governance, Competitiveness, and Public Policies (GOVCOPP). His main research interests include Energy Economics, Environmental and Natural Resources Economics, as well as Mathematical Methods and Models applied to Economics.