Co-Pierre Georg is a senior lecturer at the African Institute of Financial Markets and Risk Management at the University of Cape Town and a research economist at Deutsche Bundesbank. He works on financial and economic networks, agent-based modelling, and the microeconomics of banking. Michael E. Rose is a PhD student at the African Institute of Financial Markets and Risk Management at the University of Cape Town. He works on social networks in financial and economic applications. He is also a research affiliate at Kiel Institute for the World Economy. His ORCID iD is 0000-0002-4128-4236.