Frank Ramsey's classic paper "A contribution to the theory of taxation" gave rise to the modern theory of optimal …

We examine the growth promoting roles of R&D, international R&D spillovers, and trade in a world econometric model. A … of MULTIMOD that incorporates R&D spillovers among industrial countries and from industrial countries to developing … countries. Our simulations suggest that R&D, R&D spillovers, and trade play important roles in boosting growth in industrial and …

The empirical analysis in "International R&D Spillovers" (Coe and Helpman, 1995) is first revisited by applying modern … they impact the degree of R&D spillovers. …