IRSPP 1 (2003) Critical Factors impacting Purchasing and Supply
IRSPP 3 (2007) Building Procurement Capacity and Capability
IRSPP4 (2009) Public Procurement during an Economic Crisis, Lisbon
IRSPP5 (2011) Public Procurement and SME participation, Beijing
IRSPP 6 (2015) Community Benefits of Public Procurement, The Netherlands
IRSPP7 (2017) Collaborative Public Procurement, Milan
IRSPP 8 (2019) Procurement of Innovation