Complexity in Economic and Social Systems

There is no term that better describes the essential features of human society than complexity. On various levels from the decision-making processes of individuals through to the interactions between individuals leading to the spontaneous formation of groups and social hierarchies up to the collective herding processes that reshape whole societies all these features share the property of irreducibility i.e. they require a holistic multi-level approach formed by researchers from different disciplines. This Special Issue aims to collect research studies that by exploiting the latest advances in physics economics complex networks and data science make a step towards understanding these economic and social systems. The majority of submissions are devoted to financial market analysis and modeling including the stock and cryptocurrency markets in the COVID-19 pandemic systemic risk quantification and control wealth condensation the innovation-related performance of companies and more. Looking more at societies there are papers that deal with regional development land speculation and the-fake news-fighting strategies the issues which are of central interest in contemporary society. On top of this one of the contributions proposes a new improved complexity measure.