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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 citations counts. University professors who appear as designated inventors on at least one patent application at the European Patent(More)
The paper provides a contribution to the recent debate about targets and effectiveness of network policies at the EU level, by presenting a detailed analysis of the large R&D network that has emerged over Framework Programmes. Social network analysis and graph theory are employed to describe structural properties and dynamics of the emerging network, which(More)
(MIUR). Financial support from Fondazione Cariplo is also gratefully acknowledged. We wish to thank Jim Moody, whose SPAN programme and SAS macros helped us at a crucial stage of data processing. Seminar participants at Cespri (Milan), UQAM University (Montreal) and Max-Planck Gesellschaft (Jena) have provided useful comments and suggestions. We are of(More)
In models with heterogeneous firms trade integration has a positive impact on aggregate productivity through the selection of the best firms as import competition drives the least productive ones out of the market. To quantify the impact of firm selection on productivity, we calibrate and simulate a multi-country multi-sector model with monopolistic(More)
In this paper we analyse the early development of the steam engine as a search process in a multidimensional design space. This conceptualisation allows us to make use of recent insights coming from complex systems theory, in particular, a generalised version of Kauffman's NK model. We analyse yearly distribution of steam engine designs and their sector of(More)
We use social network analysis to evaluate 'behavioural' additionality aspects of public programmes supporting research and development (R&D). The paper appraises empirically the partnership and knowledge networks created around the R&D activities of the Information Society Priority of the Sixth Research Framework Programme of the European Community. These(More)
This study examines whether the transfer of knowledge flows from universities to enterprises in Canada is hampered by the geographical distance that separates them. The transfer of knowledge flows are measured by the amount of R&D payments from business enterprises to universities that are directly reported in Statistics Canada's survey on Research and(More)
This paper has shed light on the processes of technological diversification and specialization by firms. European, American and Japanese firms have been examined in 25 technological fields within telecommunications, information and audiovisual technologies for the period 1978-1998. In general, in electronics technologies incumbent firms are engaged in(More)
This paper explores the main patterns of firms' technological diversification and the main factors affecting the extent and direction of technological diversification. The basic point of this paper is that a major drive for technological diversification is knowledge. Two dimensions of knowledge are examined here: cumulativeness and proximity. The first(More)