1. Vertical R&D spillovers, cooperation, market structure, and innovation;Atallah;Econ. Innov. New Technol.,2002
2. R&D cooperation with asymmetric spillovers;Atallah;Can. J. Econ.,2005
3. Badillo, E., Moreno, R., 2012. What Drives the Choice of Partners in R&D Cooperation? Heterogeneity Across Sectors. Research Institute of Applied Economics, Working Paper 2012/13.
4. Vertical research joint ventures;Banerjee;Int. J. Ind. Organ.,2001
5. Heterogeneity in R&D cooperation strategies;Belderbos;Int. J. Ind. Organ.,2004