This paper estimates the international diffusion and obsolescence of technological knowledge by technological field and country using patent citations from the U.S. Patent and Trademark Office (USPTO) and from the European Patent Office (EPO). We control for self-citations and for procedural and...

This paper estimates the process of diffusion and decay of knowledge from university, public laboratories and corporate patents in six countries and tests the differences across countries and across technological fields using data from the European Patent Office. It finds that university and...

This paper estimates the diffusion and obsolescence of technological knowledge by technological field, country and type of institutions that generates it. We use two comparable samples of patents and patent citations from the NBER U.S. Patent Citations Dataset (based on patents from the US...

Patents for inventions are at the crossroad of law, technology and economics, with the Patent System resting on two fundamental assumptions: one, that technical progress is desirable and that disclosure is preferable to secrecy; two, that a competitive market economy is in the public interest,...

In this paper we present a model of the long term dynamics of market structure and innovation in the pharmaceutical industry in a history friendly way. Our results show a strong increase in concentration in each therapeutic area, but a rather low level of concentration in the overall market....

In this paper we provide an introduction to some of the most salient aspects of the debate regarding the relationships between stronger intellectual property rights (IPRs) regimes and innovation in the pharmaceutical industry. We emphasize that, despite increased knowledge on the subject, little...

The geography of innovation traditionally concentrates on localised knowledge spillovers, yet neglects collaboration networks as a means to access knowledge outside the region. Using publication and patent data for 1316 regions in the EU27 plus Norway and Switzerland, we find that both localised...

The Innovation Act was introduced by the French government in 1999, with the aim of encouraging academic institutions to protect and commercialize their scientists’ inventions. We explore the effects of the Act on the distribution of Intellectual Property Rights (IPRs) over academic...

This paper examines entry and survival in the US software market of a sample of firms based in India, Ireland and Israel. Our investigation focuses on pre-entry technological capabilities, international linkages and home based experience as determinants of the firm entry decision and post-entry...

The lack of firm-level data on innovative activities has always constrained the development of empirical studies on innovation. More recently, the availability of large datasets on indicators, such as R&D expenditures and patents, has relaxed these constrains and spurred the growth of a new wave...