This paper discusses the determinants of three alternative measures of innovative output by looking at firm's own formal R&D activities and at the acqusition of external technology (TA) in its embodied and disembodied components. These input-output relationships are also discussed by...

This study explicitly takes into account that the decision to enter into an external R&D relationship is related to an antecedent decision to carry out R&D. This calls for a methodological approach that, at the same time, permits the joint analysis of the determinants of the two decisions and...