This paper quantifies the cross-national spillover effects of governme
nt and private investment in research and development (R&D), using a p
anel data set of ten OECD countries. The results show that domestic pr
ivate research is a significant determinant of both domestic and forei
gn productivity growth, and that foreign government research stimulate
s domestic private research. These findings ave significant in that th
ey provide empirical support for arguments in favor of international e
conomic policy coordination, particularly in the area of international
science and technology.