18 resultados para IPRs


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Economists view intellectual property rights (IPRs) as policy tools for encouraging innovation, but they recognize that they can also inhibit competition. There are many types of IPRs and institutions concerned with their administration. We begin by outlining how these complex and varied rights are supposed to work and how they interact with other characteristics of firms and markets. We then survey the available literature on patents, trade marks, and copyright to assess the value of these IPRs to firms and the costs to firms of acquiring and defending their rights. The paper concludes with suggestions for topics requiring further research to inform public policy better.

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According to the institutional economics thesis the role of IPRs is one of the relevant determinants of economic growth in long run. Measures of IPRs have been limited and empirical studies have not been able to evaluate their impacts on productivity growth. The major conclusion that the author can be drawn from his estimations is that the extent to which patent rights and trademarks, ceteris paribus, positively correlated with output per capita depends on the intensity of technology.

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We report a multi-wavelength Raman spectroscopy study of the structural changes along the thermal annealing pathway of a poly(furfuryl alcohol) (PFA) derived nanoporous carbon (NPC). The Raman spectra were deconvoluted utilizing G, D, D′, A and TPA bands. The appropriateness of these deconvolutions was confirmed via recovery of the correct dispersive behaviours of these bands. It is proposed that the ID/IG ratio is composed of two parts: one associated with the extent of graphitic crystallites (the Tuinstra–Koenig relationship), and a second related to the inter-defect distance. This model was used to successfully determine the variation of the in-plane size and intra-plane defect density along the annealing pathway. It is proposed that the NPC skeleton evolves along the annealing pathway in two stages: below 1600 °C it was dominated by a reduction of in-plane defects with a minor crystallite growth, and above this temperature growth of the crystallites accelerates as the in-plane defect density approaches zero. A significant amount of transpolyacetylene (TPA)-like structures was found to be remaining even at 2400 °C. These may be responsible for resistance to further graphitization of the PFA-based carbon at higher temperatures.