Professor Liesiö’s research interests lie in decision analysis and prescriptive analytics with a focus on modeling incomplete preference information and uncertainties in decision support. In these areas, he has developed novel theory, methods, algorithms, and computer software. This research has been published in leading journals in the field such as the European Journal of Operational Research, Technological Forecasting & Social Change, and Decision Analysis.

The application areas of Professor Liesiö’s research include, for example, R&D portfolio selection, strategy building, infrastructure asset management, procurement optimization, supply chain planning, and production planning.