"Interregional mobility, productivity and the value of patents for prolific inventors in France, Germany and the U.K"

Regional creative resources include inventors. Policies conducive to inventors’ productivity or attracting productive inventors promote regional development. We build on prior work on inventor mobility and productivity, analyzing German, French and British patents filed in the US by 7,500 “prolific” inventors (fifteen or more inventions). We measure inventor mobility across regions, companies and technologies. We analyze the relationships among mobility, productivity and value. We find geographic mobility increases inventor productivity in the UK and France but not in Germany and geographic mobility is not related to the value of inventions except in Germany where it has a negative effect.Patents, inventor mobility, prolific inventors

Tracing Mobile Inventors – The Causality between Inventor Mobility and Inventor Productivity

This paper analyzes the causality between inventor productivity and inventor mobility. The results show that the level of education has no influence on inventor productivity. Making use of external sources of knowledge, on the contrary, has a significant effect on productivity. Finally, firm size has a positive impact on productivity. Firm size also influences inventor mobility, although negatively. Whereas existing research implicitly assumes causality to point in one direction, this study ex-ante allows for a simultaneous relationship. To deal with the expected endogeneity problem, instrumental variables techniques will be employed. Results show that mobile inventors are more than four times as productive as non-movers. Whereas mobility increases productivity, an increase in productivity decreases the number of moves.Inventor; Productivity; Mobility; Match Quality; Patent

QuizPower: a mobile app with app inventor and XAMPP service integration

This paper details the development of a mobile app for the Android operating system using MIT App Inventor language and development platform. The app, Quiz Power, provides students a way to study course material in an engaging and effective manner. At its current stage the app is intended strictly for use in a mobile app with App Inventor course, although it provides the facility to be adapted for other courses by simply changing the web data store. Development occurred during the spring semester of 2013. Students in the course played a vital role in providing feedback on course material, which would be the basis for the structure of the quiz as well as the questions. The significance of the project is the integration of the MIT App Inventor service with a web service implemented and managed by the department

Jim Crace: inventor of worlds

Jim Crace is a novelist who makes no religious claims. He is a maker of worlds that have dark resonances, caught between time and eternity, that have their roots in forms of textuality and language that begin in the Hebrew Bible and may be traced in Christianity through the texts of the desert fathers to the writings of T. E. Lawrence and Gertrude Bell. He is a deceiver whose deceptions reveal truths that are familiar yet strange and mysterious

Tracing Mobile Inventors – The Causality between Inventor Mobility and Inventor Productivity

This paper analyzes the causality between inventor productivity and inventor mobility. The results show that the level of education has no influence on inventor productivity. Making use of external sources of knowledge, on the contrary, has a significant effect on productivity. Finally, firm size has a positive impact on productivity. Firm size also influences inventor mobility, although negatively. Whereas existing research implicitly assumes causality to point in one direction, this study ex-ante allows for a simultaneous relationship. To deal with the expected endogeneity problem, instrumental variables techniques will be employed. Results show that mobile inventors are more than four times as productive as non-movers. Whereas mobility increases productivity, an increase in productivity decreases the number of moves

Prolific inventors: who are they and where do they locate? Evidence from a five countries US patenting data se

The prolific (serial) inventors set up the core of the paper. Prolific inventors tend to have a high productivity in terms of inventions (patents) having in general more economic value. The capacity to produce a lot of inventions (patents) is termed “prolificness”. We want to deepen our knowledge about the size of their population, some of their main characteristics, the factors that explain the number patents applied. We exploit a rich data set built onto information available released by the US Patent and Trade Mark Office (USPTO) for the five more important countries as far as technological activities are concerned: Great-Britain, France, USA, Germany, Japan over a long time period (1975-2002). We give insights upon the size of the population of prolific inventors and provide new information about some of their characteristics. We carry out an empirical study in order to explain the prolific inventor patents distribution. We suggest models for estimating the effects of the main variable explaining their productivity. Binomial regressions explaining the inventor productivity after controlling for patent duration and time concentration (among others factors) show that interfirm and international mobility and technological variety (at the inventor level) affects positively the inventor productivity. But there is simultaneity. The overall results suggest that the same factors impact positively productivity with no difference across countries (with exceptions).

Does it matter where patent citations come from? Inventor versus examiner citations in European patents

This paper investigates whether the distinction between patent citations added by the inventor or the examiner is relevant for the issue of geographical concentration of knowledge flows (as embodied in citations). The distinction between inventor and examiner citations enables us to work with a more refined citation indicator of knowledge flows. We use information in the search reports of patent examiners at the European Patent Office to construct our dataset of regional patenting in Europe, and apply various econometric models to investigate our research question. The findings point to a significant localization effect of inventor citations, after controlling for various other factors, and hence suggest that knowledge flows are indeed geographically concentrated. This holds true also for a sub-sample of patents owned by 169 large multinational enterprises (MNEs). The results for the sample of MNEs suggest that multinational firms seek out specific regional knowledge specializations (and hence at least partly reinforce geographical concentration), but are also able to transfer knowledge "easier" over larger distances.research and development ;