Abstract
In this paper we focus on proximity as one of the main determinants of international collaboration in pharmaceutical research. We use various count data specifications of the gravity model to estimate the intensity of collaboration between pairs of countries as explained by the geographical, cognitive, institutional, social, and cultural dimensions of proximity. Our results suggest that geographical distance has a significant negative relation to the collaboration intensity between countries. The amount of previous collaborations, as a proxy for social proximity, is positively related to the number of cross-country collaborations. We do not find robust significant associations between cognitive proximity or institutional proximity with the intensity of international research collaboration. Our findings for cultural proximity do not allow of unambiguous conclusions concerning their influence on the collaboration intensity between countries.
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Notes
The trade literature suggests to add origin and destination fixed effects to the analysis (e.g., Helpman et al. 2008). However, this approach is not applicable in the case of scientific collaborations since these represent undirected interactions whereas trade flows are directed interactions. Moreover, trade cost may be better observable than the cost of collaboration which are not available in our dataset.
Table 3 provides an overview of the therapeutic areas included in the dataset.
The subcategories are described in detail at http://scientific.thomsonreuters.com/mjl/.
Appendix 1 provides a description of the variables.
Results not presented in this paper are available upon request.
Another interpretation may stress that the former colonizers may want to support scientific and economic development in their former colonies. Therefore, governments may encourage scientists to collaborate with researchers based in former colonies of the respective country.
A list of science and technology agreements signed by the European Union can be obtained from the European Commission’s web site: http://ec.europa.eu/research/iscp/index.cfm?lg=en&pg=countries.
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Acknowledgements
This research was partly done while the authors were members of the Graduate College “The Economics of Innovative Change” at the Friedrich Schiller University Jena. We thank the German Science Foundation (DFG) and the DIME network for financial support. We are grateful to Uwe Cantner, the participants of the Jena Economic Research Workshop in February 2011, especially to Ljubica Nedelkoska, Fang Wang and Sebastian Wilfling, the participants of the DRUID-DIME Academy Winter Conference 2011, particularly Lars Alkærsing and Tim Pohlmann, and the participants of the DIME Final Conference 2011 and to an anonymous referee for useful comments, expressed interest, and concerns. We thank Bart Leten for helping with the CHI classification. The usual caveats apply.
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Plotnikova, T., Rake, B. Collaboration in pharmaceutical research: exploration of country-level determinants. Scientometrics 98, 1173–1202 (2014). https://doi.org/10.1007/s11192-013-1182-6
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DOI: https://doi.org/10.1007/s11192-013-1182-6