Multi agent based simulation XXIII : 23rd International Workshop MABS 2022 virtual event May 8 9 2022 : revised selected papers This book constitutes the thoroughly refereed and revised selected papers from the 22nd International Workshop on Multi Agent Based Simulation MABS 2022 which took place virtually during May 8 9 2022. The conference was originally planned to take place in Auckland New Zealand but had to change to an online format due to the COVID 19 pandemic.The 11 papers included in these proceedings were carefully reviewed and selected from 17 submissions. They focus on finding efficient solutions to model complex social systems in areas such as economics management organisational and social sciences in general