%0 Journal Article %A Giménez Fernández, Elena María %A Sandulli, Francesco Domenico %T Modes of inbound knowledge flows: are cooperation and outsourcing really complementary? %D 2017 %@ 1366-2716 %U https://hdl.handle.net/20.500.14352/18925 %X This study examines the relationship between breadths of two different modes of external knowledge: R&D outsourcing and cooperation. Building upon transaction costs literature and literature on research partner breadth and R&D outsourcing we hypothesize an U-inverted relationship between outsourcing breadth and innovation performance and a complementary relationship between R&D outsourcing and R&D cooperation. The model is tested on a large sample based on CIS survey for Spain. The empirical analysis confirms the U-inverted relationship between outsourcing breadth and innovation but also reveals an interesting result: the complementary effect of R&D cooperation varies with the level of R&D outsourcing breadth and it is not confirmed for low and medium levels of R&D outsourcing breadth. The results have important implications for theory on the selection of different modes of inbound open innovation and for managers and their cooperation and outsourcing strategies. %~