caa a22 4500 445348801 CHVBK 20180317142837.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s11192-011-0454-2 doi (NATIONALLICENCE)springer-10.1007/s11192-011-0454-2 Schubert Torben Fraunhofer Institute for Systems and Innovation Research ISI, Breslauer Straße 48, 76139, Karlsruhe, Germany aut Assessing the value of patent portfolios: an international country comparison [Elektronische Daten] [Torben Schubert] Patent counts have been extensionally used to measure the innovative capacities of countries. However, since economic values of patents may differ, simple patent counts may give misleading rankings, if the patents of one country are on average more valuable than those of another. In the literature several methods have been proposed, which shall adjust for these differences. However, often these do not possess a solid economic micro-foundation and therefore are often ad-hoc and arbitrary procedures. In this paper, we intend to present an adjustment method that is based on the analysis of renewal decisions. The method builds on the theoretical model used in Schankerman and Pakes (1986) and Besson (2008) but goes beyond both approaches in that it recovers the important long tail of the value distribution. It also transfers Besson's (2008) econometric methodology (applicable to the organisational structures of the US Patent and Trademark Office) also to the European Patent Office which is necessary, since each application here may split up into several national patent documents. The analysis is performed for 22 countries. Exemplarily, we find that in the cohort of 1986 patent applications, Danish patents are about 60% more valuable than the average patent. German patents are a bit below average. Japanese patents are of least value. In the cohort of 1996, Danish patents lose some of their lead but are still more valuable than the average. While German are a bit above average, Japanese patents even fall further behind (possibly due to the economic downturn in since the mid of 1990ies). Akadémiai Kiadó, Budapest, Hungary, 2011 Patent count nationallicence Value nationallicence Adjustment nationallicence Renewal fees nationallicence Scientometrics Springer Netherlands 88/3(2011-09-01), 787-804 0138-9130 88:3<787 2011 88 11192 https://doi.org/10.1007/s11192-011-0454-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11192-011-0454-2 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Schubert Torben Fraunhofer Institute for Systems and Innovation Research ISI, Breslauer Straße 48, 76139, Karlsruhe, Germany aut NATIONALLICENCE 773 0- Scientometrics Springer Netherlands 88/3(2011-09-01), 787-804 0138-9130 88:3<787 2011 88 11192 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer