Patent citation data are used in a growing body of economics and business research on technological diffusion. Research …. “Forward” citations (citations to the firm’s patents made by other patents) have been interpreted as a measure of the knowledge … diffusing outward from the patenting entity. Until now, there exists little evidence on whether or not patent citations are a …

issue, we build a model in which the value of an innovation depends both on the type of innovation implemented (product …, process) and on the existence of a patent protection or not. We obtain a three-equation model that links the values of product … and process innovations to the value of patent protection. This model and the feature of the data imply the estimation of …

is briefly presented. Then the empirical literature that relates Tobin's q to R&D and patent measures is surveyed and new … corporation is strongly related to its knowledge assets, and that the patent measures contain information about this value above …

each industry starting from the NBER patent data set (63_99) using the mean forward citations lag data as the fundamental … variable of our analysis. In fact we follow the idea that each patent number of citations grows untill a point from which it …

special innovation-related assets by acquiring firms with “superior” innovative performance; or acquirers seeking to acquire … phenomenon and that economic and innovation related variables explain only a modest part of the probability of becoming a target … relatively larger stock of accumulated knowledge (stock of citation-weighted patents), relatively higher R&D inputs (R …

When the home country introduces a patent law after the winner of the patent race is known the country's welfare may … rise only if the domestic firm wins. If the home country decides before the patent race ends, the welfare may be increased …

-weighted patent-intensity as a proxy for R&D output; the stock of citation-weighted patents as a proxy for the accumulated stock of … following innovation- related factors on the propensity to acquire: R&D-intensity as a proxy for R&D inputs; the citation … smaller acquisitions can be seen as part of an innovation strategy by acquiring firms with relatively low levels of internal R …

This paper analyzes the effects of different sources of R&D funding and patent office attributes on the patenting … influenced by patent office attributes. The state level analysis sheds light on the differing role of the federal government as …

The strategies of rent appropriation and market structure are inter- dependent. How firms use patents depends upon … leaders combined patents and secrecy to deter entry. Patents were also used to within cartels to organize technology licensing …. The role of patents changed in the less concentrated post war markets. In bulk organic chemicals and petrochemicals, even …