private economic value of patents. The estimated mean of our patent value distribution is higher than 3 million Euros, the … skewed distribution of patent values. Our measure is significantly correlated with the number of patent citations, references …, claims, and countries in which the patent is applied. Citations explain value as much as the other three indicators combined …

impact on patent count at industry level, and this impact is larger than that of R&D expenditures. We confirm that this … measure of innovation alternative to patent count. Unlike the impact on patent count, we do not find that VC investment … and material. Therefore, our finding suggests that, at industry level, VC investment increases the patent propensity but …

software industry. We focus on two key aspects: patent portfolio size which affects bargaining power in patent disputes, and … the fragmentation of patent rights (.patent thickets.) which increases the transaction costs of enforcement. We develop a …

technological exhaustion. We first develop an index of patent ‘quality’ using detailed information on patents in the U.S. in seven …We analyse the determinants of the decline in measured research productivity (the patent/R&D ratio) using panel data on … manufacturing firms in the U.S. for the period 1980-93. We focus on three factors: the level of demand, the quality of patents, and …

software industry. We focus on two key aspects: patent portfolio size which affects bargaining power in patent disputes, and … the fragmentation of patent rights (.patent thickets.) which increases the transaction costs of enforcement. We develop a …

identify unique patterns of knowledge flows (based on patent citations), which provide information about whether “spilled …