14,780 research outputs found
Semileptonic and Electroweak Penguin Results from BABAR
We report recent results from the BABAR experiment on semileptonic charmless
B-meson decays and electroweak penguin processes. Semileptonic charmless decays
are used to determine |Vub| and the exclusive modes considered here also begin
to constrain QCD-lattice form factor calculations. Radiative penguin decays are
both sensitive to physics beyond the Standard Model and can be used to extract
Heavy Quark parameters related to the b-quark mass and its motion inside the
hadron.Comment: To be submitted to the proceedings of the LVth Rencontres de Moriond
session devoted to "QCD and High Energy Hadronic Interactions", La
Thuile(Italy), 12-19th March 200
The R&D process in the US and Japan: Major findings from the RIETI-Georgia Tech Inventor Survey
RIETI Discussion PaperThis paper analyzes and compares the objective, the nature and the performance of R&D projects in the US and Japan, based on the first large scale systematic survey of inventors, focusing on the R&D projects yielding triadic patents. Major findings are the following. First, the projects for enhancing the existing business line of a firm account for a large share of R&D projects in both countries, confirming the view that the R&D investment is significantly conditioned by the existing complementary asset of a firm. In both countries, the inventions from R&D for existing business have the highest in-house utilization rate but use least the scientific and technical literature for their conceptions, while the reverse is the case for the inventions from R&D for new technology base (or for cultivating seeds). R&D projects for enhancing the technology base are much more common in the US. This difference can be partly accounted for by US inventors being more likely to have a PhD, but not by the differences in the structure of finance. US government financial support is relatively more targeted to projects for existing business and US venture capital provides support mainly projects for creating new business (6% of them), but not for more upstream projects.
Only about 20-30% of the projects are for process innovation in both countries, providing direct evidence for the earlier findings that were based on US patent information. Product innovation generates process patents more often in Japan than in the US (25% vs. 10%), while product innovation projects are relatively more numerous in Japan. In both countries a significant share of inventions (more than 20%) were not the result of an R&D project, and a substantial proportion of such inventions are valued among the top 10% of patents, suggesting that R&D expenditure significantly underestimates inventive activities. A US invention is more often an unexpected by-product of an R&D project (11%) than in Japan (3.4%). The two countries have surprisingly similar distributions of R&D projects in man month and the average team size. In both countries, smaller firms tend to have relatively more high-value patents. In the US, inventors from very small firms (with less than 100 employees) and universities jointly account for more than one quarter of the top 10% inventions, even though they account for only 14% of all inventions.
Man-months expended for an invention has a significant correlation with the performance of the R&D projects for existing business, less so for new business and not at all for those enhancing the technology base,suggesting substantial heterogeneity by project types in the determinants of the performance and in the uncertainty. A PhD has a significant correlation with R&D project performance especially for new business
Commercialization and Other Uses of Patents in Japan and the US: Major Findings From the RIETI-Georgia Tech Inventor Survey
RIETI Discussion PaperBased on the newly implemented inventor survey in Japan and the US, we have examined the commercialization and other uses of triadic patents. Although the two countries have a similar overall level of commercialization (60% of the triadic patents), the structure is different: in Japan, we see a higher incidence of in-house use relative to the overall level of commercialization, more inventions being licensed and less used for startups. We also see more multiple uses (in-house and license/startup) in Japan. In both countries licensing plays a relatively important role for commercializing the inventions from R&D targeted to new business and to enhancing the technology base. Consistently, licensing becomes more important as a patenting reason as the invention involves more scientific knowledge. The key difference in startups between the two countries is a high incidence of the inventions of university researchers being used for startups in the US (35%). In both countries strategic holding (use of the patents for blocking and the prevention of inventing around) is one of the major reasons of non-commercialized patents. Only 20% of the internally commercialized patents can be used on a stand-alone basis in both countries, and both the incidence of cross-license conditional on license and the incidence of license itself tend to increase with the size of the bundle of the patents to be jointly used with that invention. As appropriation measures, the first mover advantage (FMA) in commercialization and the FMA in R&D are the most important in both countries, while the latter becomes more important as the invention involves more scientific knowledge. The US inventors rank patent enforcement significantly higher than possessing complementary capabilities, while the reverse is the case for Japanese inventors. In addition, enhancing the exclusive exploitation of the invention is a more important patenting reason in the US. The fact that the commercialization rate of patented inventions is quite similar between the two countries despite of the significant difference of the appreciation of exclusivity indicates that exclusivity may promote exploitation in certain areas and retard it in others. Finally, non-conventional patenting reasons are also important in both countries: blocking and pure defense are at least as important as licensing, and corporate reputation is an important reason for patenting by small firms
ESS versus NVZ – The Cost-Effectiveness of Command-and-Control versus Agreement Based Policy Instruments
This study empirically investigates the cost-effectiveness of different agri-environmental policy instruments. We compare the Environment Stewardship Scheme (ESS) as an example for a management agreement type instrument, to the Nitrate Vulnerable Zones (NVZ) as an example for a command-and-control type instrument. Both instruments are currently applied in the UK. Based on a simple cost model considering also relevant transaction costs and risk we use different regression and resampling techniques to estimate the marginal effects of different factors with respect to the instruments‟ relative cost-effectiveness and to identify factors for cost variation over space and time. We control for the actual level of compliance by using compliance weighted average scheme cost ratios. The findings suggest that the ESS instrument has a higher cost-effectiveness whereas the NVZ instrument is more expensive on a general level. However, if the focus is on compliance weighted cost ratios, the picture changes somewhat. Further, we find a significant regional variation in the cost-effectiveness for both instruments as well as a significant variation over time.Agri-Environmental Instruments, Costs, Risk, Risk and Uncertainty,
Bringing the Copenhagen Global Climate Change Negotiations to Conclusion
In this paper we discuss the global negotiations now underway and aimed at achieving new climate change mitigation and other arrangements after 2012 (the end of the Kyoto commitment period). These were initiated in Bali in December 2007 and are scheduled to conclude by the end of 2009 in Copenhagen. As such, this negotiation is effectively the second round in ongoing global negotiations on climate change and further rounds will almost certainly follow. We highlight both the vast scope and vagueness of the negotiating mandate, the many outstanding major issues to be accommodated between negotiating parties, the lack of a mechanism to force collective decision making in the negotiation, and their short time frame. The likely lack of compliance with prior Kyoto commitments by several OECD countries (some to a major degree), the effective absence in Kyoto of compliance/enforcement mechanisms, and growing linkage to non-climate change areas (principally trade) all further complicate the task of bringing the negotiation to conclusion. The major clearage we see that needs to be bridged in the negotiations is between OECD countries on the one hand, and lower wage, large population, rapidly growing countries (China, India, Russia, Brazil) on the other.climate change, global negotiation
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