Before revision:  By applying machine learning techniques, we leverage this knowledge to show that network properties of a node can be used to predict the missing rating of a firm . Our results suggest that risk assessment should take quan- titatively into account also the network of interactions among firms .
After revision:  By applying machine learning techniques, we leverage this knowledge to show that network properties of a node can be used to predict the missing rating of a firm using only network properties of a node by means of machine learning methods .