Firms often struggle and falter in their innovation efforts. However, past research has paid little systematic attention on why firms struggle in their innovation efforts. In this book, using a longitudinal research design the author examines how the characteristics of a firm's ego network and of its cluster independently and jointly impact its technological innovation. This research provides a framework showing how networks and clusters may work in tandem in helping a firm overcome innovation barriers. The empirical evidence indicates that the efficacy of cluster resources increases in the...