We build a new concordance between the NBER Patent Data and US Census micro-data, and use it to examine what happens when firms patent. We find strong evidence that increases in patent stock are associated with increases in firm size and scope as well as with changes in factor intensity. We find...

We empirically examine the determinants of the price of patent licensing. We find factors affecting the profitability of patents and bargaining power of licensors and licensees are good predictors of the royalty rate of patent licensing, while proxies for the reservation price of licensors are...

Does an expansion of patent scope induce more innovative effort by firms? This article provides evidence on this question by examining firm responses to the Japanese patent reforms of 1988. Interviews with practitioners suggest the reforms significantly expanded the scope of patent rights in...