We also show that the evidence that knowledge spillovers flow along the supply chains is more robust than the traditional finding that knowledge spillovers depend on geographical distance or trade flows. Our findings support policies that favour participation in supply chains to foster economic...

This paper assesses the robustness of the empirical results in Ertur and Koch (2007), who develop a model, which accounts for technological interdependence among countries through spatial externalities. The original version models interdependence via an interaction matrix based on geographic...