He has research affiliations with the research institute SINTEF in Trondheim and the German Institute for Economic Research (DIW Berlin). Ruud has a master’s degree in Business Econometrics from the Free University in Amsterdam (1997) and a PhD in Civil and Environmental Engineering from the University of Maryland, College Park, USA (2010). His main research and publication area is energy markets and infrastructure, with a topical focus on – but not limited to – natural gas markets and the liquefied natural gas supply chain and a functional focus on scenario analysis, stochastic equilibrium and risk modelling, and decomposition. Recently bioenergy and regional economic and policy modelling have gained his interest.