In three recent articles, Holger Straßheim sheds light on the role of behavioural economics and psychology in global public policy. He examines the global influence of behavioural expert networks, their political implications and their relevance for understanding both the success and failures of behavioural change approaches in public policy. One of these papers has now been included in the "Virtual Special Issue: Public Policy and Administration and COVID-19" by the Journal of Public Policy and Administration.