In this study, we present novel statistics on the patenting in US manufacturing and new evidence on the question of what happens when firms patent. We do so by creating a comprehensive firm-patent matched dataset that links the NBER patent data (covering the universe of patents) to firm data...

Economists have long recognized that in free markets, incentives to innovate will be diluted unless some factors grant innovators with a temporary monopoly. Patenting is the most cited factor in the economic literature. This survey concentrates on another factor that confers innovators with...