Innovation is typically a trial-and-error process. While some research paths lead to the innovation sought, others … that leads to an early abandonment of the risky project. We show that different types of firms follow different innovation …

linked fields. Our analysis uses 1.8 million U.S. patents and their citation properties to map the innovation network and its … strength. Past innovation network structures are calculated using citation patterns across technology classes during 1975 … predictive power on future innovation after 1995. This pattern is consistent with the idea that when there is more past upstream …