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Motivation and Sorting in Open Source Software Innovation

Belenzon, Sharon; Schankerman, Mark - C.E.P.R. Discussion Papers - 2008

innovation. We exploit the observed pattern of contributions - the 'revealed preference' of developers - to infer the underlying …

Persistent link: https://www.econbiz.de/10005789146

Buy, Keep or Sell: Economic Growth and the Market for Ideas

Akcigit, Ufuk; Celik, Murat Alp; Greenwood, Jeremy - Department of Economics, University of Pennsylvania - 2013

An endogenous growth model is developed where each period firms invest in researching and developing new ideas. An idea increases a firm's productivity. By how much depends on how central the idea is to a firm's activity. Ideas can be bought and sold on a market for patents. A firm can sell an...

Persistent link: https://www.econbiz.de/10010822927

Growth through Heterogeneous Innovations

Akcigit, Ufuk; Kerr, William R. - Department of Economics, University of Pennsylvania - 2010

framework that contains multiple innovation sizes, multi-product firms, and entry/exit. Firms invest in exploration R&D to … regularities regarding innovation and growth differences across the firm size distribution. We also incorporate patent citations …

Persistent link: https://www.econbiz.de/10008674319

Patents as quality signals? The implications for financing constraints on R&D

Czarnitzki, Dirk; Hall, Bronwyn H.; Hottenrott, Hanna - Düsseldorf Institute for Competition Economics (DICE), … - 2014

Information about the success of a new technology is usually held asymmetrically between the research and development (R&D)-performing firm and potential lenders and investors. This raises the cost of capital for financing R&D externally, resulting in financing constraints on R&D especially for...

Persistent link: https://www.econbiz.de/10010956728

Quantity or quality? Knowledge alliances and their effects on patenting

Hottenrott, Hanna; Lopes-Bento, Cindy - Düsseldorf Institute for Competition Economics (DICE), … - 2013

This study shows for a large sample of R&D-active manufacturing firms over the period 2000-2009 that knowledge alliances have a positive effect on patenting in terms of both quantity and quality. However, when distinguishing between alliances that aim at joint creation of new knowledge and...

Persistent link: https://www.econbiz.de/10010956757

Taxation and the International Mobility of Inventors

Akcigit, Ufuk; Baslandze, Salomé; Stantcheva, Stefanie - Department of Economics, University of Pennsylvania - 2015

This paper studies the effect of top tax rates on inventors' mobility since 1977. We put special emphasis on”superstar" inventors, those with the most and most valuable patents. We use panel data on inventors from the United States and European Patent Offices to track inventors' locations over...

Persistent link: https://www.econbiz.de/10011199194

How Broad Should the Scope of Patent Protection Be?

Klemperer, Paul - C.E.P.R. Discussion Papers - 1990

-focused patents are the socially efficient way to reward innovation, and also show when very short-lived but very broad patents are …

Persistent link: https://www.econbiz.de/10005656411

Innovative Activity in Wind and Solar Technology: Empirical Evidence on Knowledge Spillovers Using Patent Data

Braun, Frauke G; Schmidt-Ehmcke, Jens; Zloczysti, Petra - C.E.P.R. Discussion Papers - 2010

sectors (inter-sectoral spillovers), or at the international level. We find that innovation is strongly driven by knowledge … spillovers, especially those occurring at the national level. Wind and solar technologies exhibit distinct innovation … only influential in the case of wind technology. We also find evidence that public R&D stimulates innovation, particularly …

Persistent link: https://www.econbiz.de/10008468596

Everything You Always Wanted to Know about Inventors (But Never Asked): Evidence from the PatVal-EU Survey

Brusoni, Stefano; Crespi, Gustavo; Francoz, Dominique; … - C.E.P.R. Discussion Papers - 2006

Based on a survey of the inventors of 9,017 European patented inventions, this paper provides new information about the characteristics of European inventors, the sources of their knowledge, the importance of formal and informal collaborations, the motivations to invent, and the actual use and...

Persistent link: https://www.econbiz.de/10005124480

How Persistently do Firms Innovate?

Geroski, Paul A; Samiei, Hossein; Van Reenen, John - C.E.P.R. Discussion Papers - 1996

produced at least one major innovation at any time in the United Kingdom from 1945–82. Both datasets yield the same conclusion …

Persistent link: https://www.econbiz.de/10005136678