Head of the Economic Modeling Group in the Department of Operations Research, Member of the Statistics and Econometrics Committee of the Polish Academy of Sciences (KSiE PAN), General Chair of the Energy Finance Christmas (EFC) Workshops series, Associate Editor of ARGO, Computational Statistics, Journal of Energy Engineering, Journal of Energy Markets, National Economy and Operations Research and Decisions. His research focuses on developing risk management and forecasting tools for the energy industry and computational statistics as applied to finance and insurance. His other interests include agent-based modeling, computational economics, derivatives pricing, financial engineering, stochastic modeling and time series analysis. He is the author of the widely acclaimed Modeling and Forecasting Electricity Loads and Prices: A Statistical Approach (Wiley, 2006) and co-author of four other books. He has also published over 80 peer-reviewed book chapters and journal articles (most notably in top-tier Energy, Energy Economics, Energy Policy, IEEE Transactions on Power Systems, IEEE Transactions on Smart Grid, International Journal of Forecasting and Renewable and Sustainable Energy Reviews), including a 52-page long Invited Review Paper on electricity price forecasting. With a Ph.D. (1999) in Financial Mathematics and a habilitation (2009) and professor title (2015) in Economics, he is periodically engaged as a consultant to financial, energy and software engineering companies.