We estimate a gravity model to address the question of whether Africa’s bilateral trade with industrial countries is “unusual” compared with other developing country regions. Our main finding is that the unusually low level of African trade is explained by economic size, geographical...

Keller (1998) reexamines Coe and Helpman’s (1995) analysis of international R&D spillovers focusing on the weights used to define the foreign R&D capital stock. Keller creates “random” weights and shows that they give rise to positive estimates of international R&D spillovers, casting...

The empirical analysis in ""International R&D Spillovers"" (Coe and Helpman, 1995) is first revisited by applying modern panel cointegration estimation techniques to an expanded data set that we have constructed for the purpose of this study. The new estimates confirm the key results reported in...

The empirical analysis in quot;International Ramp;D Spilloversquot; (Coe and Helpman, 1995) is first revisited by applying modern panel cointegration estimation techniques to an expanded data set that we have constructed for the purpose of this study. The new estimates confirm the key results...

The empirical analysis in quot;International Ramp;D Spilloversquot; (Coe and Helpman, 1995) is first revisited by applying modern panel cointegration estimation techniques to an expanded data set that we have constructed for the purpose of this study. The new estimates confirm the key results...

We estimate a gravity model to address the question of whether Africa`s bilateral trade with industrial countries is quot;unusualquot; compared with other developing country regions. Our main finding is that the unusually low level of African trade is explained by economic size, geographical...

Keller (1998) reexamines Coe and Helpman`s (1995) analysis of international R&D spillovers focusing on the weights used to define the foreign R&D capital stock. Keller creates random weights and shows that they give rise to positive estimates of international R&D spillovers, casting doubts on...

We examine the extent to which developing countries that do little, if any research and development themselves benefit from R&D that is performed in the industrial countries. By trading with an industrial country that has large 'stocks of knowledge' from its cumulative R&D activities, a...