Gunnar Sjöstedt is a former research Director of the Swedish Institute of International Affairs and is presently an associated researcher. Recent work focuses on non-state actors - NGOs and business companies - particularly their role in peace processes.
Sjöstedt's research has covered European integration, foreign policy making, trade policy, non-military power, economic security, psychological warfare, international regime building, and systems analysis.
He was a member of the steering committee of the Program on International Negotiation (PIN) at the International Institute for Applied Systems Analysis (IIASA) during twenty years. In this capacity Sjöstedt has edited or co-edited a number of books addressing different topics pertaining to multilateral negotiations. Sjöstedt has done consulting work for ministries and state agencies concerned with foreign policy and national security.