presents estimates of the effect of patent protection on the depreciation rate. Results suggest that the yearly depreciation …This paper presents estimates of the R&D depreciation rate using survey data on Australian inventions. Its novelty is … rate varies in a range of 1 to 5 per cent, although the depreciation rate is stronger in the first two years of inventions …

estimation of the value of patent rights based on European patent renewal data; and describes the use of patent data to estimate …This paper summarizes a number of studies which use patent data to examine different aspects of technological change … the importance of R&D spillovers. It concludes that patent data represent a valuable resource for the analysis of …

While policymakers often assume venture capital has a profound impact on innovation, that premise has not been … address concerns that these results are an artifact of our use of patent counts by demonstrating similar patterns when other … measures of innovation are used in a sample of 530 venture-backed and non-venture-backed firms …

briefly presented. Then the empirical literature that relates Tobin's q or the market to book value ratio to R&D and patent … value of the modern manufacturing corporation is strongly related to its knowledge assets, and that patent measures contain …

, droughts and flooding on the innovation of their respective mitigation technologies. Using patent and disaster data, our study … is the first to relate natural disasters to technology innovation, and also presents the first attempt to empirically …

Scientific knowledge is believed to be the wellspring of innovation. Historically, firms have also invested in research … to fuel innovation and growth. In this paper, we document a shift away from scientific research by large corporations … innovation. Large firms appear to value the golden eggs of science (as reflected in patents) but not the golden goose itself (the …

carefully coordinated features of a more comprehensive income tax, including the indexation of interest, depreciation, and …

We develop a forward-looking profit model to estimate the depreciation rates of business R&D capital. By using data …-specific R&D depreciation rates. The results comprise a set of R&D depreciation rates for major U.S. high-tech industries. They … percent and vary across industries. The relative ranking of the constant R&D depreciation rates among industries is consistent …

Low-quality patents are of considerable concern to businesses operating in patent-dense markets. There are two pathways … by which low-quality patents may be issued: the patent office may apply systematically a standard that is too lenient … (low inventive step threshold); or the patent office may grant patents that are, in fact, below its own threshold (so …