Link, Albert N. (contributor) - 2008
/2), 17-33 -- Zvi Griliches (1958), 'Research Costs and Social Returns: Hybrid Corn and Related Innovations', Journal of … (1977), 'Social and Private Rates of Return from Industrial Innovations', Quarterly Journal of Economics, 91 (2), May, 221 …-40 -- Manuel Trajtenberg (1989), 'The Welfare Analysis of Product Innovations, with an Application to Computed Tomography Scanners …