Before revision:  In this work, we consider the interactions by investigating a large proprietary dataset of payments among Italian firms. We first characterise the topological properties of the payment networks, and then we focus our attention on the relation between the network and the riskof firms.
After revision:  In this work, we consider the interactions by investigating a large proprietary dataset of payments among 2.4M Italian firms, whose credit risk rating is known. We document significant correlations between local topological properties of the payment networks, and then we focus our attention on the relation between the network and the riskof firms.