Purpose of the paper: Italian firms are increasingly drawn to modify their own competitive positioning. Traditional network relations, such as industrial districts or subcontracting value chains, are not themselves sufficient to generate this repositioning, since they are not designed to achieve a strategic goal, but tend to emerge spontaneously. We focus on an evolutionary path, empirically drawn from two case studies, leading to the definition of strategic network, i.e., an aggregation resulting from joint projects designed to manage the shift of partner firms towards an higher value-added segment of the value chain. Methodology: This paper analyzes the formal network contract as an empirical phenomenon capturing the theoretical concep...