In this paper we exploit new data on US inventors in Organic Chemistry, Pharmaceuticals, and Biotechnology to revisit the JTH test of the localization of knowledge spillovers (Jaffe, Trajtenberg, and Henderson; 1993). We find that inventors who patent across different companies contribute...

We investigate the scientific productivity of Italian academic inventors, namely academic researchers designated as inventors on patent applications to the European Patent Office, 1978-1999. We use a new longitudinal data set comprising 299 academic inventors, and as many matching controls...

Based on longitudinal data for a matched sample of 592 Italian academic inventors and controls, the paper explores the impact of patenting on university professors’ scientific productivity, as measured by publication and citation counts. Academic inventors (university professors who appear as...

This article provides a critical discussion of the recent econometric literature on "localised knowledge spillovers" and the related notion of tacit knowledge. The basic claim of the article is that the increasing, and more or less automatic reliance of industrial geographers upon such...

The paper re-examines critically the growing literature on localised knowledge spillovers (LKSs), and finds the econometric evidence on the subject still lacking of a firm theoretical background, especially in respect of the more recent developments in the economics of knowledge. Therefore such...

This paper discusses the existing literature on migration and innovation, with special emphasis on empirical studies based on patent and inventor data. Other sources of micro-data are examined, too, for comparative purposes. A pilot database, based on patent filings at the European Patent Office...

The paper explores the role of inventors' mobility and social networks in generating localized knowledge flows. Using a sample of Italian inventors, we replicate Jaffe's, Trajtenberg's, and Henderson's [1993] test on patent citations and find similar results. We then control for the role of...

This wide-ranging Handbook is the first major compilation of the theoretical and empirical research that is forging the new and exciting paradigm of evolutionary economic geography.