Dr. Martin Daniel Siyaranamual is a Lecturer and researcher at the Department of Economics, Padjadjaran University. He has been a researcher at CEDS since 2005. Dr. Siyaranamual earned his bachelor degree in economics from Padjadjaran University, Indonesia (2005), a masters degree in Environmental and natural resource economics from University of Toulouse, France (2007), and Ph.D in Environmental and natural resource economics from Ca’ Foscari University of Venice, Italy (2013). Dr. Siyaranamual’s research interest is in the area of environmental valuation, experimental economics, and social networks. His recent research topic is on the effect of social interactions in the provision of public goods.