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The aim of this paper is to analyze the impact of international activities on knowledge output. For this purpose, we employ a dataset containing exclusively qualitative information about a sample of small and medium Italian manufacturing firms. In the econometric analysis, a probit model is used. The results of the estimations highlight that firms active in international markets generate more knowledge than their counterparts which sell in the national market only. There are two possible explanations of this result. First, globally engaged firms employ more knowledge inputs, such as higher innovation expenditures. Second, international firms are more innovative because they can access to a larger flow of ideas from external sources. [ABSTRACT FROM AUTHOR]

Morrison A. Gatekeepers of knowledge within industrial districts: who they are, how they interact, Regional Studies. Studies on industrial districts suggest that their innovative performance is strictly linked to their ability to absorb external knowledge. Yet, the existing literature provides few insights into the functioning of this process. This paper, focusing on leader firms located in a successful Italian furniture district, investigates whether they feed the district with knowledge absorbed from external sources, thereby behaving as 'gatekeepers of knowledge... [ABSTRACT FROM AUTHOR]

• We studied the variation over time of the geographic proximity effect on knowledge flows. • Flows are associated to citations exchanged between scientific publications. • We analyze world publications citing 2010–2012 Italian publications in the WoS. • Gravity models are used to control for sizes and relevant cognitive proximity. • The analysis, overall and at discipline level, both includes and excludes self-citations. This work analyzes the variation over time of the effect of geographic distance on knowledge flows. The flows are measured through the citations exchanged between scientific publications, including and excluding self-citations. To calculate geographic distances between citing and cited publication, each publication is associated with a "prevailing" territory, according to the authors' affiliations. We then apply a gravity model to account for the research size of the territories, in terms of cognitive proximity of citing-cited publications. The field of observation is the 2010–2017 world publications citing the 2010–2012 Italian publications, as indexed in the Web of Science. The results show that in domestic knowledge flows, geographic proximity remains an influential factor through time, although with differences among disciplines and trends of attenuating effects. Finally, we replicate the analyses of knowledge flows but with the exclusion of self-citations: in this manner the effect of geographic proximity seems reduced, particularly at the national scale, but the differences (with vs without self-citations) lessen through time. As shown in previous works, the effect of distance on continental flows is modest (imperceptible for intercontinental flows), yet here too time has some influence, including concerning exclusion of self-citations. [ABSTRACT FROM AUTHOR]

• We analyse the diffusion of knowledge produced in Italy in the period 2010–2012. • We assign the prevalent territory of an article on the basis of the authors' affiliations. • Geographic distance continues to play a role in the process of knowledge flows. • It is significant at the national level, and not negligible at the continental level. • It is completely irrelevant at the intercontinental level. This paper analyses the influence of geographic distance on knowledge flows, measured through citations to scientific publications. Previous works using the same approach are limited to single disciplines. In this study, we analyse the Italian scientific production in all disciplines matured in the period 2010–2012. To calculate the geographic distances between citing and cited publications, each one is associated with a "prevalent" territory on the basis of the authors' affiliations. The results of the application of a gravity model, estimated using ordinary least squares regression, show that despite the spread of IT, geographic distance continues to be an influential factor in the process of knowledge flows between territories. In particular, the analysis reveals that the effect of geographic distance on knowledge flows is significant at the national level, not negligible at the continental level, but completely irrelevant at the intercontinental level. [ABSTRACT FROM AUTHOR]