@article{discovery16510, pages = {883--895}, number = {4}, journal = {Review of Economics and Statistics}, title = {Mapping the two faces of R\&D: productivity growth in a panel of OECD industries}, year = {2004}, volume = {86}, publisher = {MIT Press}, url = {https://discovery.ucl.ac.uk/id/eprint/16510/}, author = {Griffith, R and Redding, S and VanReenen, J}, issn = {0034-6535} }