Medda, Giuseppe; Piga, Claudio A.; Siegel, Donald S. - 2003
&D (product, process, internal, external in collaboration with universities, research centres and other firms) to Total Factor … Productivity (TFP). Thus, this paper answers the call for more research on the links between a firm's external R&D and its … good nature of research, firms may resort to do R&D within laboratories run by universities only when the outcome of the …