The projects of the Line of research A: Economic networks analyse exchange on an interregional scale. The aim is the description and explanation of economies and economic conditions as networks, i. e. conceptualized as relationships between agents. We are especially interested in exchange networks, the application of social network analysis in archaeology and in modelling exchange and transmission between populations. All projects deal with ancient economies characterized by sedentariness, agricultural production, and interregional exchange. The range of case studies reaches from simple to complex societies including re-distributary, early market and monetised economies.